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20470468015 = 55969391417
BaseRepresentation
bin10011000100001000…
…101000110110101111
31221211121210112001001
4103010020220312233
5313410414434030
613223133101131
71323164051524
oct230410506657
957747715031
1020470468015
118755055668
123b736277a7
131c12cbca8a
14dc299114b
157ec1edcca
hex4c4228daf

20470468015 has 8 divisors (see below), whose sum is σ = 24980910480. Its totient is φ = 16098808512.

The previous prime is 20470468013. The next prime is 20470468063. The reversal of 20470468015 is 51086407402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20470468015 - 21 = 20470468013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20470468013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34695414 + ... + 34696003.

It is an arithmetic number, because the mean of its divisors is an integer number (3122613810).

Almost surely, 220470468015 is an apocalyptic number.

20470468015 is a deficient number, since it is larger than the sum of its proper divisors (4510442465).

20470468015 is an equidigital number, since it uses as much as digits as its factorization.

20470468015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69391481.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 20470468015 in words is "twenty billion, four hundred seventy million, four hundred sixty-eight thousand, fifteen".

Divisors: 1 5 59 295 69391417 346957085 4094093603 20470468015