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187064608968 = 23322598119569
BaseRepresentation
bin1010111000110111101…
…0110110100011001000
3122212211212001201212200
42232031322312203020
511031102014441333
6221534123440200
716341430640466
oct2561572664310
9585755051780
10187064608968
1172374105496
1230307686060
131484244c243
1490a8173836
154ceca35c13
hex2b8deb68c8

187064608968 has 24 divisors (see below), whose sum is σ = 506633316150. Its totient is φ = 62354869632.

The previous prime is 187064608943. The next prime is 187064609009. The reversal of 187064608968 is 869806460781.

187064608968 is a `hidden beast` number, since 1 + 87 + 0 + 6 + 460 + 8 + 96 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131085995364 + 55978613604 = 362058^2 + 236598^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1299059713 + ... + 1299059856.

Almost surely, 2187064608968 is an apocalyptic number.

187064608968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

187064608968 is an abundant number, since it is smaller than the sum of its proper divisors (319568707182).

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

187064608968 is a wasteful number, since it uses less digits than its factorization.

187064608968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598119581 (or 2598119574 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 187064608968 in words is "one hundred eighty-seven billion, sixty-four million, six hundred eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2598119569 5196239138 7794358707 10392478276 15588717414 20784956552 23383076121 31177434828 46766152242 62354869656 93532304484 187064608968