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472215812 = 22396729759
BaseRepresentation
bin11100001001010…
…111000100000100
31012220120001022112
4130021113010010
51431341401222
6114505120152
714462524325
oct3411270404
91186501275
10472215812
1122260a802
12112189058
1376aa7853
1446a0244c
152b6cabe2
hex1c257104

472215812 has 12 divisors (see below), whose sum is σ = 826613760. Its totient is φ = 236040456.

The previous prime is 472215811. The next prime is 472215833. The reversal of 472215812 is 218512274.

It is not an unprimeable number, because it can be changed into a prime (472215811) by changing a digit.

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, 989 + ... + 30747.

It is an arithmetic number, because the mean of its divisors is an integer number (68884480).

Almost surely, 2472215812 is an apocalyptic number.

It is an amenable number.

472215812 is a deficient number, since it is larger than the sum of its proper divisors (354397948).

472215812 is a wasteful number, since it uses less digits than its factorization.

472215812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33730 (or 33728 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 472215812 is about 21730.5271910278. The cubic root of 472215812 is about 778.7179311022.

The spelling of 472215812 in words is "four hundred seventy-two million, two hundred fifteen thousand, eight hundred twelve".

Divisors: 1 2 4 3967 7934 15868 29759 59518 119036 118053953 236107906 472215812