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2160870140 = 2251113839103
BaseRepresentation
bin1000000011001100…
…0100001011111100
312120121001120120102
42000303010023330
513411140321030
6554230540232
7104356043642
oct20063041374
95517046512
102160870140
11a098337a0
12503807678
132858b0bb0
14166db3192
15c9a8cc45
hex80cc42fc

2160870140 has 96 divisors (see below), whose sum is σ = 5395977216. Its totient is φ = 716509440.

The previous prime is 2160870139. The next prime is 2160870143. The reversal of 2160870140 is 410780612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160870143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232829 + ... + 241931.

It is an arithmetic number, because the mean of its divisors is an integer number (56208096).

Almost surely, 22160870140 is an apocalyptic number.

2160870140 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 2160870140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2697988608).

2160870140 is an abundant number, since it is smaller than the sum of its proper divisors (3235107076).

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

2160870140 is a wasteful number, since it uses less digits than its factorization.

2160870140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219 (or 9217 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2160870140 is about 46485.1604278183. The cubic root of 2160870140 is about 1292.8343703271.

The spelling of 2160870140 in words is "two billion, one hundred sixty million, eight hundred seventy thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 83 110 130 143 166 220 260 286 332 415 572 715 830 913 1079 1430 1660 1826 2158 2860 3652 4316 4565 5395 9103 9130 10790 11869 18206 18260 21580 23738 36412 45515 47476 59345 91030 100133 118339 118690 182060 200266 236678 237380 400532 473356 500665 591695 755549 1001330 1183390 1301729 1511098 2002660 2366780 2603458 3022196 3777745 5206916 6508645 7555490 8311039 9822137 13017290 15110980 16622078 19644274 26034580 33244156 39288548 41555195 49110685 83110390 98221370 108043507 166220780 196442740 216087014 432174028 540217535 1080435070 2160870140