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145316902 = 21931281439
BaseRepresentation
bin10001010100101…
…01110000100110
3101010102212022111
420222111300212
5244200120102
622230351234
73413113303
oct1052256046
9333385274
10145316902
1175033815
12407bb51a
132414c443
141542a0aa
15cb56cd7
hex8a95c26

145316902 has 32 divisors (see below), whose sum is σ = 238233600. Its totient is φ = 66225600.

The previous prime is 145316893. The next prime is 145316911. The reversal of 145316902 is 209613541.

It is an interprime number because it is at equal distance from previous prime (145316893) and next prime (145316911).

It is a super-2 number, since 2×1453169022 = 42234004013755208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 330799 + ... + 331237.

It is an arithmetic number, because the mean of its divisors is an integer number (7444800).

Almost surely, 2145316902 is an apocalyptic number.

145316902 is a deficient number, since it is larger than the sum of its proper divisors (92916698).

145316902 is a wasteful number, since it uses less digits than its factorization.

145316902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 145316902 is about 12054.7460363128. The cubic root of 145316902 is about 525.7412380763.

The spelling of 145316902 in words is "one hundred forty-five million, three hundred sixteen thousand, nine hundred two".

Divisors: 1 2 19 31 38 62 281 439 562 589 878 1178 5339 8341 8711 10678 13609 16682 17422 27218 123359 165509 246718 258571 331018 517142 2343821 3824129 4687642 7648258 72658451 145316902