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48902931 = 32721117593
BaseRepresentation
bin1011101010001…
…1001100010011
310102000112012200
42322203030103
5100004343211
64504054243
71132445100
oct272431423
9112015180
1048902931
1125671550
1214464383
13a192c5c
1466cdaa7
15445eb56
hex2ea3313

48902931 has 72 divisors (see below), whose sum is σ = 95073264. Its totient is φ = 23869440.

The previous prime is 48902923. The next prime is 48902947. The reversal of 48902931 is 13920984.

48902931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 48902931 - 23 = 48902923 is a prime.

It is a super-2 number, since 2×489029312 = 4782993320781522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48902981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 82171 + ... + 82763.

It is an arithmetic number, because the mean of its divisors is an integer number (1320462).

Almost surely, 248902931 is an apocalyptic number.

48902931 is a deficient number, since it is larger than the sum of its proper divisors (46170333).

48902931 is a wasteful number, since it uses less digits than its factorization.

48902931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 48902931 is about 6993.0630627787. The cubic root of 48902931 is about 365.6887751123.

The spelling of 48902931 in words is "forty-eight million, nine hundred two thousand, nine hundred thirty-one".

Divisors: 1 3 7 9 11 17 21 33 49 51 63 77 99 119 147 153 187 231 357 441 539 561 593 693 833 1071 1309 1617 1683 1779 2499 3927 4151 4851 5337 6523 7497 9163 10081 11781 12453 19569 27489 29057 30243 37359 45661 58707 70567 82467 87171 90729 110891 136983 211701 261513 319627 332673 410949 493969 635103 776237 958881 998019 1481907 2328711 2876643 4445721 5433659 6986133 16300977 48902931