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213579378384 = 24337438093457
BaseRepresentation
bin1100011011101001010…
…0101010111011010000
3202102021201021120200120
43012322110222323100
511444402310102014
6242041135150240
721300460522311
oct3067224527320
9672251246616
10213579378384
118263aa9a169
1235487375380
13171a9749408
14a4a1786608
1558506bdba9
hex31ba52aed0

213579378384 has 160 divisors (see below), whose sum is σ = 580721581440. Its totient is φ = 67554902016.

The previous prime is 213579378301. The next prime is 213579378401. The reversal of 213579378384 is 483873975312.

213579378384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61779984 + ... + 61783440.

It is an arithmetic number, because the mean of its divisors is an integer number (3629509884).

Almost surely, 2213579378384 is an apocalyptic number.

213579378384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213579378384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290360790720).

213579378384 is an abundant number, since it is smaller than the sum of its proper divisors (367142203056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213579378384 is a wasteful number, since it uses less digits than its factorization.

213579378384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4351 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 213579378384 in words is "two hundred thirteen billion, five hundred seventy-nine million, three hundred seventy-eight thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 37 43 48 74 86 111 129 148 172 222 258 296 344 444 516 592 688 809 888 1032 1591 1618 1776 2064 2427 3182 3236 3457 4773 4854 6364 6472 6914 9546 9708 10371 12728 12944 13828 19092 19416 20742 25456 27656 29933 34787 38184 38832 41484 55312 59866 69574 76368 82968 89799 104361 119732 127909 139148 148651 165936 179598 208722 239464 255818 278296 297302 359196 383727 417444 445953 478928 511636 556592 594604 718392 767454 834888 891906 1023272 1189208 1287119 1436784 1534908 1669776 1783812 2046544 2378416 2574238 2796713 3069816 3567624 3861357 5148476 5500087 5593426 6139632 7135248 7722714 8390139 10296952 11000174 11186852 15445428 16500261 16780278 20593904 22000348 22373704 30890856 33000522 33560556 44000696 44747408 61781712 66001044 67121112 88001392 103478381 120258659 132002088 134242224 206956762 240517318 264004176 310435143 360775977 413913524 481034636 620870286 721551954 827827048 962069272 1241740572 1443103908 1655654096 1924138544 2483481144 2886207816 4449570383 4966962288 5772415632 8899140766 13348711149 17798281532 26697422298 35596563064 53394844596 71193126128 106789689192 213579378384