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72468572 = 22111647013
BaseRepresentation
bin1000101000111…
…00100001011100
312001100210012012
410110130201130
5122022443242
611105130352
71536654431
oct424344134
9161323165
1072468572
11379a7790
12203299b8
1312024317
1498a5b88
156567282
hex451c85c

72468572 has 12 divisors (see below), whose sum is σ = 138349176. Its totient is φ = 32940240.

The previous prime is 72468563. The next prime is 72468581. The reversal of 72468572 is 27586427.

It is an interprime number because it is at equal distance from previous prime (72468563) and next prime (72468581).

It is a congruent number.

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 823463 + ... + 823550.

It is an arithmetic number, because the mean of its divisors is an integer number (11529098).

Almost surely, 272468572 is an apocalyptic number.

It is an amenable number.

72468572 is a deficient number, since it is larger than the sum of its proper divisors (65880604).

72468572 is a wasteful number, since it uses less digits than its factorization.

72468572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647028 (or 1647026 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 72468572 is about 8512.8474672110. The cubic root of 72468572 is about 416.9172852443.

It can be divided in two parts, 724 and 68572, that added together give a palindrome (69296).

The spelling of 72468572 in words is "seventy-two million, four hundred sixty-eight thousand, five hundred seventy-two".

Divisors: 1 2 4 11 22 44 1647013 3294026 6588052 18117143 36234286 72468572