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145680524 = 221119174259
BaseRepresentation
bin10001010111011…
…10100010001100
3101011010100002222
420223232202030
5244243234044
622242234512
73416156363
oct1053564214
9334110088
10145680524
1175261a30
1240955a38
1324248ac2
14154c27da
15cbc98ee
hex8aee88c

145680524 has 24 divisors (see below), whose sum is σ = 292756800. Its totient is φ = 62732880.

The previous prime is 145680523. The next prime is 145680533. The reversal of 145680524 is 425086541.

It is not an unprimeable number, because it can be changed into a prime (145680523) 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 7 ways as a sum of consecutive naturals, for example, 86294 + ... + 87965.

It is an arithmetic number, because the mean of its divisors is an integer number (12198200).

Almost surely, 2145680524 is an apocalyptic number.

It is an amenable number.

145680524 is an abundant number, since it is smaller than the sum of its proper divisors (147076276).

145680524 is a wasteful number, since it uses less digits than its factorization.

145680524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174293 (or 174291 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 145680524 is about 12069.8187227481. The cubic root of 145680524 is about 526.1793881821.

The spelling of 145680524 in words is "one hundred forty-five million, six hundred eighty thousand, five hundred twenty-four".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 174259 348518 697036 1916849 3310921 3833698 6621842 7667396 13243684 36420131 72840262 145680524