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31669380228 = 22341535872069
BaseRepresentation
bin11101011111101001…
…000110010010000100
310000202002112012112110
4131133221012102010
51004324330131403
622314304421020
72200540201413
oct353751062204
9100662465473
1031669380228
11124815a3112
12617a017770
132ca91b0555
14176603d47a
15c55480103
hex75fa46484

31669380228 has 96 divisors (see below), whose sum is σ = 77294528640. Its totient is φ = 10082575360.

The previous prime is 31669380227. The next prime is 31669380277. The reversal of 31669380228 is 82208396613.

It is not an unprimeable number, because it can be changed into a prime (31669380227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15305578 + ... + 15307646.

It is an arithmetic number, because the mean of its divisors is an integer number (805151340).

Almost surely, 231669380228 is an apocalyptic number.

It is an amenable number.

31669380228 is an abundant number, since it is smaller than the sum of its proper divisors (45625148412).

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

31669380228 is a wasteful number, since it uses less digits than its factorization.

31669380228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2755 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 31669380228 in words is "thirty-one billion, six hundred sixty-nine million, three hundred eighty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 41 53 82 106 123 159 164 212 246 318 492 587 636 1174 1761 2069 2173 2348 3522 4138 4346 6207 6519 7044 8276 8692 12414 13038 24067 24828 26076 31111 48134 62222 72201 84829 93333 96268 109657 124444 144402 169658 186666 219314 254487 288804 328971 339316 373332 438628 508974 657942 1017948 1214503 1275551 1315884 2429006 2551102 3643509 3826653 4495937 4858012 5102204 7287018 7653306 8991874 13487811 14574036 15306612 17983748 26975622 49794623 53951244 64368659 99589246 128737318 149383869 193105977 199178492 257474636 298767738 386211954 597535476 772423908 2639115019 5278230038 7917345057 10556460076 15834690114 31669380228