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672132072 = 233291576151
BaseRepresentation
bin101000000011111…
…110101111101000
31201211201211212110
4220003332233220
52334031211242
6150410042320
722441012503
oct5003765750
91654654773
10672132072
11315445857
121691193a0
13a93329b1
14653a213a
153e01a39c
hex280febe8

672132072 has 64 divisors (see below), whose sum is σ = 1749628800. Its totient is φ = 214905600.

The previous prime is 672132053. The next prime is 672132089. The reversal of 672132072 is 270231276.

It is a super-2 number, since 2×6721320722 = 903523044422026368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106197 + ... + 112347.

It is an arithmetic number, because the mean of its divisors is an integer number (27337950).

Almost surely, 2672132072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672132072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874814400).

672132072 is an abundant number, since it is smaller than the sum of its proper divisors (1077496728).

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

672132072 is a wasteful number, since it uses less digits than its factorization.

672132072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346 (or 6342 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 672132072 is about 25925.5100624848. The cubic root of 672132072 is about 875.9612063469.

The spelling of 672132072 in words is "six hundred seventy-two million, one hundred thirty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 157 174 232 314 348 471 628 696 942 1256 1884 3768 4553 6151 9106 12302 13659 18212 18453 24604 27318 36424 36906 49208 54636 73812 109272 147624 178379 356758 535137 713516 965707 1070274 1427032 1931414 2140548 2897121 3862828 4281096 5794242 7725656 11588484 23176968 28005503 56011006 84016509 112022012 168033018 224044024 336066036 672132072