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472120907 = 617739687
BaseRepresentation
bin11100001000111…
…111111001001011
31012220101020010112
4130020333321023
51431330332112
6114503104535
714461650536
oct3410777113
91186336115
10472120907
11222555475
1211214214b
1376a735ab
14469b9a1d
152b6aca22
hex1c23fe4b

472120907 has 4 divisors (see below), whose sum is σ = 479860656. Its totient is φ = 464381160.

The previous prime is 472120903. The next prime is 472120921. The reversal of 472120907 is 709021274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 472120907 - 22 = 472120903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472120903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3869783 + ... + 3869904.

It is an arithmetic number, because the mean of its divisors is an integer number (119965164).

Almost surely, 2472120907 is an apocalyptic number.

472120907 is a deficient number, since it is larger than the sum of its proper divisors (7739749).

472120907 is an equidigital number, since it uses as much as digits as its factorization.

472120907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7739748.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 472120907 is about 21728.3434021096. The cubic root of 472120907 is about 778.6657592104.

The spelling of 472120907 in words is "four hundred seventy-two million, one hundred twenty thousand, nine hundred seven".

Divisors: 1 61 7739687 472120907