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214544320 = 2652961379
BaseRepresentation
bin11001100100110…
…10111111000000
3112221200222110221
430302122333000
5414410404240
633142232424
75213411434
oct1462327700
9487628427
10214544320
11100117361
125ba25714
13355aa403
14206ca9c4
1513c7da4a
hexcc9afc0

214544320 has 112 divisors (see below), whose sum is σ = 538581600. Its totient is φ = 81285120.

The previous prime is 214544311. The next prime is 214544327. The reversal of 214544320 is 23445412.

It is a happy number.

214544320 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 not an unprimeable number, because it can be changed into a prime (214544327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565891 + ... + 566269.

Almost surely, 2214544320 is an apocalyptic number.

214544320 is a gapful number since it is divisible by the number (20) 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 214544320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269290800).

214544320 is an abundant number, since it is smaller than the sum of its proper divisors (324037280).

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

214544320 is a wasteful number, since it uses less digits than its factorization.

214544320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 214544320 is about 14647.3314975800. The cubic root of 214544320 is about 598.6491089196.

Adding to 214544320 its reverse (23445412), we get a palindrome (237989732).

The spelling of 214544320 in words is "two hundred fourteen million, five hundred forty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 61 64 80 116 122 145 160 232 244 290 305 320 379 464 488 580 610 758 928 976 1160 1220 1516 1769 1856 1895 1952 2320 2440 3032 3538 3790 3904 4640 4880 6064 7076 7580 8845 9280 9760 10991 12128 14152 15160 17690 19520 21982 23119 24256 28304 30320 35380 43964 46238 54955 56608 60640 70760 87928 92476 109910 113216 115595 121280 141520 175856 184952 219820 231190 283040 351712 369904 439640 462380 566080 670451 703424 739808 879280 924760 1340902 1479616 1758560 1849520 2681804 3352255 3517120 3699040 5363608 6704510 7398080 10727216 13409020 21454432 26818040 42908864 53636080 107272160 214544320