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145064624 = 2431292469
BaseRepresentation
bin10001010010110…
…00001010110000
3101002222001020212
420221120022300
5244114031444
622221123252
73411012635
oct1051301260
9332861225
10145064624
1174981221
12406b9528
1324091673
14153a218c
15cb0719e
hex8a582b0

145064624 has 20 divisors (see below), whose sum is σ = 290130240. Its totient is φ = 70192320.

The previous prime is 145064617. The next prime is 145064627. The reversal of 145064624 is 426460541.

145064624 is an admirable number.

It is a super-2 number, since 2×1450646242 = 42087490272522752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145064627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145739 + ... + 146730.

It is an arithmetic number, because the mean of its divisors is an integer number (14506512).

Almost surely, 2145064624 is an apocalyptic number.

It is an amenable number.

145064624 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145064624 is a wasteful number, since it uses less digits than its factorization.

145064624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292508 (or 292502 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 145064624 is about 12044.2776454215. The cubic root of 145064624 is about 525.4368234418.

The spelling of 145064624 in words is "one hundred forty-five million, sixty-four thousand, six hundred twenty-four".

Divisors: 1 2 4 8 16 31 62 124 248 496 292469 584938 1169876 2339752 4679504 9066539 18133078 36266156 72532312 145064624