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9972750372 = 22313562311369
BaseRepresentation
bin10010100100110110…
…00001100000100100
3221202000111012122220
421102123001200210
5130411011002442
64325330352340
7502063656654
oct112233014044
927660435586
109972750372
1142583a2a62
121b23a2b6b0
13c2c169330
146a86ac364
153d57c8eec
hex2526c1824

9972750372 has 48 divisors (see below), whose sum is σ = 25066392960. Its totient is φ = 3067723008.

The previous prime is 9972750349. The next prime is 9972750451. The reversal of 9972750372 is 2730572799.

It is a super-2 number, since 2×99727503722 (a number of 21 digits) contains 22 as substring.

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, 871504 + ... + 882872.

It is an arithmetic number, because the mean of its divisors is an integer number (522216520).

Almost surely, 29972750372 is an apocalyptic number.

It is an amenable number.

9972750372 is an abundant number, since it is smaller than the sum of its proper divisors (15093642588).

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

9972750372 is a wasteful number, since it uses less digits than its factorization.

9972750372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17012 (or 17010 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 51.

The square root of 9972750372 is about 99863.6589155434. The cubic root of 9972750372 is about 2152.4759916979.

The spelling of 9972750372 in words is "nine billion, nine hundred seventy-two million, seven hundred fifty thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 5623 11246 11369 16869 22492 22738 33738 34107 45476 67476 68214 73099 136428 146198 147797 219297 292396 295594 438594 443391 591188 877188 886782 1773564 63927887 127855774 191783661 255711548 383567322 767134644 831062531 1662125062 2493187593 3324250124 4986375186 9972750372