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99712560290 = 25721271602323
BaseRepresentation
bin101110011011101010…
…1001110110010100010
3100112101010202220002112
41130313111032302202
53113202403412130
6113450214115322
710126653530600
oct1346725166242
9315333686075
1099712560290
1139319160422
12173a964bb42
1395310bb985
144b7cbda870
1528d8dac495
hex173754eca2

99712560290 has 48 divisors (see below), whose sum is σ = 210430006272. Its totient is φ = 33917952096.

The previous prime is 99712560287. The next prime is 99712560341. The reversal of 99712560290 is 9206521799.

It is a happy 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, 738932 + ... + 863391.

It is an arithmetic number, because the mean of its divisors is an integer number (4383958464).

Almost surely, 299712560290 is an apocalyptic number.

99712560290 is an abundant number, since it is smaller than the sum of its proper divisors (110717445982).

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

99712560290 is a wasteful number, since it uses less digits than its factorization.

99712560290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602471 (or 1602464 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 99712560290 in words is "ninety-nine billion, seven hundred twelve million, five hundred sixty thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 127 245 254 490 635 889 1270 1778 4445 6223 8890 12446 31115 62230 1602323 3204646 8011615 11216261 16023230 22432522 56081305 78513827 112162610 157027654 203495021 392569135 406990042 785138270 1017475105 1424465147 2034950210 2848930294 7122325735 9971256029 14244651470 19942512058 49856280145 99712560290