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72482215 = 51310511061
BaseRepresentation
bin1000101000111…
…11110110100111
312001101110220111
410110133312213
5122023412330
611105313451
71540042261
oct424376647
9161343814
1072482215
1137a06a63
1220335887
131202a5b0
1498aab31
15656b32a
hex451fda7

72482215 has 16 divisors (see below), whose sum is σ = 93846816. Its totient is φ = 53424000.

The previous prime is 72482171. The next prime is 72482231. The reversal of 72482215 is 51228427.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-72482215 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 67785 + ... + 68845.

It is an arithmetic number, because the mean of its divisors is an integer number (5865426).

Almost surely, 272482215 is an apocalyptic number.

72482215 is a deficient number, since it is larger than the sum of its proper divisors (21364601).

72482215 is a wasteful number, since it uses less digits than its factorization.

72482215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its digits is 8960, while the sum is 31.

The square root of 72482215 is about 8513.6487477462. The cubic root of 72482215 is about 416.9434466798.

The spelling of 72482215 in words is "seventy-two million, four hundred eighty-two thousand, two hundred fifteen".

Divisors: 1 5 13 65 1051 1061 5255 5305 13663 13793 68315 68965 1115111 5575555 14496443 72482215