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102301971972 = 223311078572999
BaseRepresentation
bin101111101000110101…
…1000011011000000100
3100210001121012122010220
41133101223003120010
53134003301100342
6114555154144340
710251065262024
oct1372153033004
9323047178126
10102301971972
113a427883782
12179b08820b0
1398546c5335
144d46a83a84
1529db39a5ec
hex17d1ac3604

102301971972 has 96 divisors (see below), whose sum is σ = 249080832000. Its totient is φ = 32643183360.

The previous prime is 102301971923. The next prime is 102301971979. The reversal of 102301971972 is 279179103201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102301971979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34110529 + ... + 34113527.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592000).

Almost surely, 2102301971972 is an apocalyptic number.

102301971972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102301971972 is an abundant number, since it is smaller than the sum of its proper divisors (146778860028).

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

102301971972 is a wasteful number, since it uses less digits than its factorization.

102301971972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001 (or 3999 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 42.

The spelling of 102301971972 in words is "one hundred two billion, three hundred one million, nine hundred seventy-one thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 31 62 93 107 124 186 214 321 372 428 642 857 1284 1714 2571 2999 3317 3428 5142 5998 6634 8997 9951 10284 11996 13268 17994 19902 26567 35988 39804 53134 79701 91699 92969 106268 159402 183398 185938 275097 278907 318804 320893 366796 371876 550194 557814 641786 962679 1100388 1115628 1283572 1925358 2570143 2842669 3850716 5140286 5685338 7710429 8528007 9947683 10280572 11370676 15420858 17056014 19895366 29843049 30841716 34112028 39790732 59686098 79674433 119372196 159348866 239023299 275005301 318697732 478046598 550010602 825015903 956093196 1100021204 1650031806 3300063612 8525164331 17050328662 25575492993 34100657324 51150985986 102301971972