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15204472007 = 73312073997
BaseRepresentation
bin11100010100100000…
…11101010011000111
31110020121220012112212
432022100131103013
5222114321101012
610552420334035
71045531610504
oct161220352307
943217805485
1015204472007
1164a258994a
122b43b4431b
13158400a9ca
14a4344c4ab
155dec53b22
hex38a41d4c7

15204472007 has 4 divisors (see below), whose sum is σ = 15206553336. Its totient is φ = 15202390680.

The previous prime is 15204471991. The next prime is 15204472013. The reversal of 15204472007 is 70027440251.

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 15204472007 - 24 = 15204471991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15204472037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029668 + ... + 1044329.

It is an arithmetic number, because the mean of its divisors is an integer number (3801638334).

Almost surely, 215204472007 is an apocalyptic number.

15204472007 is a deficient number, since it is larger than the sum of its proper divisors (2081329).

15204472007 is an equidigital number, since it uses as much as digits as its factorization.

15204472007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081328.

The product of its (nonzero) digits is 15680, while the sum is 32.

The spelling of 15204472007 in words is "fifteen billion, two hundred four million, four hundred seventy-two thousand, seven".

Divisors: 1 7331 2073997 15204472007