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145583656 = 23127143291
BaseRepresentation
bin10001010110101…
…10111000101000
3101010221102020021
420223112320220
5244232134111
622240210224
73415304101
oct1053267050
9333842207
10145583656
11751a6179
1240909974
132421399a
14154993a8
15cbaad71
hex8ad6e28

145583656 has 16 divisors (see below), whose sum is σ = 275120640. Its totient is φ = 72218160.

The previous prime is 145583651. The next prime is 145583677. The reversal of 145583656 is 656385541.

It is not an unprimeable number, because it can be changed into a prime (145583651) 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 3 ways as a sum of consecutive naturals, for example, 70630 + ... + 72661.

It is an arithmetic number, because the mean of its divisors is an integer number (17195040).

Almost surely, 2145583656 is an apocalyptic number.

It is an amenable number.

145583656 is a deficient number, since it is larger than the sum of its proper divisors (129536984).

145583656 is a wasteful number, since it uses less digits than its factorization.

145583656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143424 (or 143420 counting only the distinct ones).

The product of its digits is 432000, while the sum is 43.

The square root of 145583656 is about 12065.8052362866. The cubic root of 145583656 is about 526.0627373881.

The spelling of 145583656 in words is "one hundred forty-five million, five hundred eighty-three thousand, six hundred fifty-six".

Divisors: 1 2 4 8 127 254 508 1016 143291 286582 573164 1146328 18197957 36395914 72791828 145583656