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145651074 = 23196431987
BaseRepresentation
bin10001010111001…
…11010110000010
3101011001211201020
420223213112002
5244241313244
622241450310
73416004462
oct1053472602
9334054636
10145651074
1175241898
1240940996
132423858a
14154b5ba2
15cbc0d19
hex8ae7582

145651074 has 32 divisors (see below), whose sum is σ = 307265280. Its totient is φ = 45900432.

The previous prime is 145651067. The next prime is 145651091. The reversal of 145651074 is 470156541.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72309 + ... + 74295.

It is an arithmetic number, because the mean of its divisors is an integer number (9602040).

Almost surely, 2145651074 is an apocalyptic number.

145651074 is an abundant number, since it is smaller than the sum of its proper divisors (161614206).

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

145651074 is a wasteful number, since it uses less digits than its factorization.

145651074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 145651074 is about 12068.5986759027. The cubic root of 145651074 is about 526.1439292503.

The spelling of 145651074 in words is "one hundred forty-five million, six hundred fifty-one thousand, seventy-four".

Divisors: 1 2 3 6 19 38 57 114 643 1286 1929 1987 3858 3974 5961 11922 12217 24434 36651 37753 73302 75506 113259 226518 1277641 2555282 3832923 7665846 24275179 48550358 72825537 145651074