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145372 = 2236343
BaseRepresentation
bin100011011111011100
321101102011
4203133130
514122442
63041004
71143553
oct433734
9241364
10145372
119a247
1270164
1351226
143ad9a
152d117
hex237dc

145372 has 6 divisors (see below), whose sum is σ = 254408. Its totient is φ = 72684.

The previous prime is 145361. The next prime is 145381. The reversal of 145372 is 273541.

It is a super-2 number, since 2×1453722 = 42266036768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

145372 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18168 + ... + 18175.

2145372 is an apocalyptic number.

It is an amenable number.

145372 is a deficient number, since it is larger than the sum of its proper divisors (109036).

145372 is a wasteful number, since it uses less digits than its factorization.

145372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36347 (or 36345 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 145372 is about 381.2768023366. The cubic root of 145372 is about 52.5807675933.

The spelling of 145372 in words is "one hundred forty-five thousand, three hundred seventy-two".

Divisors: 1 2 4 36343 72686 145372