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102979982187852 = 223721115921456739
BaseRepresentation
bin10111011010100011100101…
…010000011101110101001100
3111111121210100000112120210220
4113122203211100131311030
5101444211000420002402
61003004203431031340
730456025646615100
oct2732434520356514
9444553300476726
10102979982187852
112a8a3624298350
12b67226380b550
13455cc806a2893
141b60387307900
15bd8b2b929dbc
hex5da8e541dd4c

102979982187852 has 72 divisors (see below), whose sum is σ = 304927739484480. Its totient is φ = 26748047319840.

The previous prime is 102979982187721. The next prime is 102979982187853. The reversal of 102979982187852 is 258781289979201.

It is not an unprimeable number, because it can be changed into a prime (102979982187853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7960721902 + ... + 7960734837.

It is an arithmetic number, because the mean of its divisors is an integer number (4235107492840).

Almost surely, 2102979982187852 is an apocalyptic number.

102979982187852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102979982187852 is an abundant number, since it is smaller than the sum of its proper divisors (201947757296628).

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

102979982187852 is a wasteful number, since it uses less digits than its factorization.

102979982187852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15921456771 (or 15921456762 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 78.

The spelling of 102979982187852 in words is "one hundred two trillion, nine hundred seventy-nine billion, nine hundred eighty-two million, one hundred eighty-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 49 66 77 84 98 132 147 154 196 231 294 308 462 539 588 924 1078 1617 2156 3234 6468 15921456739 31842913478 47764370217 63685826956 95528740434 111450197173 175136024129 191057480868 222900394346 334350591519 350272048258 445800788692 525408072387 668701183038 700544096516 780151380211 1050816144774 1225952168903 1337402366076 1560302760422 2101632289548 2340454140633 2451904337806 3120605520844 3677856506709 4680908281266 4903808675612 7355713013418 8581665182321 9361816562532 14711426026836 17163330364642 25744995546963 34326660729284 51489991093926 102979982187852