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47670472 = 2322926021
BaseRepresentation
bin1011010111011…
…0010011001000
310022200220121001
42311312103020
544200423342
64421424344
71116122653
oct265662310
9108626531
1047670472
11249aa593
1213b6b0b4
139b50ca5
14648c89a
1542b98b7
hex2d764c8

47670472 has 16 divisors (see below), whose sum is σ = 89775900. Its totient is φ = 23730240.

The previous prime is 47670457. The next prime is 47670473. The reversal of 47670472 is 27407674.

It is a happy number.

47670472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32878756 + 14791716 = 5734^2 + 3846^2 .

It is not an unprimeable number, because it can be changed into a prime (47670473) 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 3 ways as a sum of consecutive naturals, for example, 11179 + ... + 14842.

Almost surely, 247670472 is an apocalyptic number.

It is an amenable number.

47670472 is a deficient number, since it is larger than the sum of its proper divisors (42105428).

47670472 is a wasteful number, since it uses less digits than its factorization.

47670472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26256 (or 26252 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 47670472 is about 6904.3806384063. The cubic root of 47670472 is about 362.5905524079.

It can be divided in two parts, 476704 and 72, that added together give a triangular number (476776 = T976).

The spelling of 47670472 in words is "forty-seven million, six hundred seventy thousand, four hundred seventy-two".

Divisors: 1 2 4 8 229 458 916 1832 26021 52042 104084 208168 5958809 11917618 23835236 47670472