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145672 = 23131139
BaseRepresentation
bin100011100100001000
321101211021
4203210020
514130142
63042224
71144462
oct434410
9241737
10145672
119a49a
1270374
13513c7
143b132
152d267
hex23908

145672 has 16 divisors (see below), whose sum is σ = 277200. Its totient is φ = 71760.

The previous prime is 145661. The next prime is 145679. The reversal of 145672 is 276541.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (145679) 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, 979 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (17325).

2145672 is an apocalyptic number.

It is an amenable number.

145672 is a deficient number, since it is larger than the sum of its proper divisors (131528).

145672 is a wasteful number, since it uses less digits than its factorization.

145672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 272 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 145672 is about 381.6700145414. The cubic root of 145672 is about 52.6169125450.

The spelling of 145672 in words is "one hundred forty-five thousand, six hundred seventy-two".

Divisors: 1 2 4 8 131 139 262 278 524 556 1048 1112 18209 36418 72836 145672