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72483831 = 3271150537
BaseRepresentation
bin1000101001000…
…00001111110111
312001101120010100
410110200033313
5122023440311
611105325143
71540050060
oct424401767
9161346110
1072483831
1137a081a2
12203367b3
131202b254
1498ab567
15656ba56
hex45203f7

72483831 has 12 divisors (see below), whose sum is σ = 119655952. Its totient is φ = 41419296.

The previous prime is 72483811. The next prime is 72483839. The reversal of 72483831 is 13838427.

It is not a de Polignac number, because 72483831 - 210 = 72482807 is a prime.

It is a super-2 number, since 2×724838312 = 10507811512873122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72483839) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 575206 + ... + 575331.

Almost surely, 272483831 is an apocalyptic number.

72483831 is a deficient number, since it is larger than the sum of its proper divisors (47172121).

72483831 is a wasteful number, since it uses less digits than its factorization.

72483831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150550 (or 1150547 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 72483831 is about 8513.7436536461. The cubic root of 72483831 is about 416.9465452588.

The spelling of 72483831 in words is "seventy-two million, four hundred eighty-three thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 63 1150537 3451611 8053759 10354833 24161277 72483831