Search a number
-
+
102888864864 = 253211328111251
BaseRepresentation
bin101111111010010100…
…1110111110001100000
3100211120111112212211200
41133310221313301200
53141204022133424
6115133321241200
710301452631022
oct1376451676140
9324514485750
10102888864864
113a6a909a025
1217b35333200
139919182036
144da09b8012
152a22b798c9
hex17f4a77c60

102888864864 has 144 divisors (see below), whose sum is σ = 296256293424. Its totient is φ = 33868800000.

The previous prime is 102888864853. The next prime is 102888864889. The reversal of 102888864864 is 468468888201.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1028888648642 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9139239 + ... + 9150489.

It is an arithmetic number, because the mean of its divisors is an integer number (2057335371).

Almost surely, 2102888864864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102888864864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148128146712).

102888864864 is an abundant number, since it is smaller than the sum of its proper divisors (193367428560).

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

102888864864 is a wasteful number, since it uses less digits than its factorization.

102888864864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661 (or 11650 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 63.

The spelling of 102888864864 in words is "one hundred two billion, eight hundred eighty-eight million, eight hundred sixty-four thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 113 144 226 281 288 339 452 562 678 843 904 1017 1124 1356 1686 1808 2034 2248 2529 2712 3372 3616 4068 4496 5058 5424 6744 8136 8992 10116 10848 11251 13488 16272 20232 22502 26976 31753 32544 33753 40464 45004 63506 67506 80928 90008 95259 101259 127012 135012 180016 190518 202518 254024 270024 285777 360032 381036 405036 508048 540048 571554 762072 810072 1016096 1080096 1143108 1271363 1524144 1620144 2286216 2542726 3048288 3161531 3240288 3814089 4572432 5085452 6323062 7628178 9144864 9484593 10170904 11442267 12646124 15256356 18969186 20341808 22884534 25292248 28453779 30512712 37938372 40683616 45769068 50584496 56907558 61025424 75876744 91538136 101168992 113815116 122050848 151753488 183076272 227630232 303506976 357253003 366152544 455260464 714506006 910520928 1071759009 1429012012 2143518018 2858024024 3215277027 4287036036 5716048048 6430554054 8574072072 11432096096 12861108108 17148144144 25722216216 34296288288 51444432432 102888864864