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72474852 = 22321112861
BaseRepresentation
bin1000101000111…
…10000011100100
312001101002210210
410110132003210
5122023143402
611105215420
71540011642
oct424360344
9161332723
1072474852
1137a0147a
1220331570
1312027138
1498a8192
15656906c
hex451e0e4

72474852 has 24 divisors (see below), whose sum is σ = 169247232. Its totient is φ = 24138400.

The previous prime is 72474841. The next prime is 72474877. The reversal of 72474852 is 25847427.

It is a self number, because there is not a number n which added to its sum of digits gives 72474852.

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 7 ways as a sum of consecutive naturals, for example, 23902 + ... + 26762.

It is an arithmetic number, because the mean of its divisors is an integer number (7051968).

Almost surely, 272474852 is an apocalyptic number.

It is an amenable number.

72474852 is an abundant number, since it is smaller than the sum of its proper divisors (96772380).

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

72474852 is a wasteful number, since it uses less digits than its factorization.

72474852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4977 counting only the distinct ones).

The product of its digits is 125440, while the sum is 39.

The square root of 72474852 is about 8513.2163134740. The cubic root of 72474852 is about 416.9293280046.

The spelling of 72474852 in words is "seventy-two million, four hundred seventy-four thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 2111 2861 4222 5722 6333 8444 8583 11444 12666 17166 25332 34332 6039571 12079142 18118713 24158284 36237426 72474852