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102104402312 = 23114337372341
BaseRepresentation
bin101111100010111100…
…1011000100110001000
3100202112211110001112002
41133011321120212020
53133102211333222
6114523415410132
710243146046133
oct1370571304610
9322484401462
10102104402312
113a336300770
1217956683948
1398227ac303
144d2873521a
1529c8d71392
hex17c5e58988

102104402312 has 64 divisors (see below), whose sum is σ = 214282791360. Its totient is φ = 45209606400.

The previous prime is 102104402249. The next prime is 102104402333. The reversal of 102104402312 is 213204401201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375262 + ... + 1447602.

It is an arithmetic number, because the mean of its divisors is an integer number (3348168615).

Almost surely, 2102104402312 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 102104402312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107141395680).

102104402312 is an abundant number, since it is smaller than the sum of its proper divisors (112178389048).

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

102104402312 is a wasteful number, since it uses less digits than its factorization.

102104402312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72774 (or 72770 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102104402312 its reverse (213204401201), we get a palindrome (315308803513).

The spelling of 102104402312 in words is "one hundred two billion, one hundred four million, four hundred two thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 43 44 86 88 172 344 373 473 746 946 1492 1892 2984 3784 4103 8206 16039 16412 32078 32824 64156 72341 128312 144682 176429 289364 352858 578728 705716 795751 1411432 1591502 3110663 3183004 6221326 6366008 12442652 24885304 26983193 34217293 53966386 68434586 107932772 136869172 215865544 273738344 296815123 593630246 1160277299 1187260492 2320554598 2374520984 4641109196 9282218392 12763050289 25526100578 51052201156 102104402312