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13207916487 = 34402638829
BaseRepresentation
bin11000100110100000…
…01100111111000111
31021002111000200021010
430103100030333013
5204022211311422
610022335253303
7645206303103
oct142320147707
937074020233
1013207916487
115668585167
12268737a233
13132649b3cc
148d420c903
15524821b0c
hex31340cfc7

13207916487 has 4 divisors (see below), whose sum is σ = 17610555320. Its totient is φ = 8805277656.

The previous prime is 13207916473. The next prime is 13207916531. The reversal of 13207916487 is 78461970231.

It is a happy number.

13207916487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13207916487 - 210 = 13207915463 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 (13207916287) 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, 2201319412 + ... + 2201319417.

It is an arithmetic number, because the mean of its divisors is an integer number (4402638830).

Almost surely, 213207916487 is an apocalyptic number.

13207916487 is a deficient number, since it is larger than the sum of its proper divisors (4402638833).

13207916487 is an equidigital number, since it uses as much as digits as its factorization.

13207916487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402638832.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 13207916487 in words is "thirteen billion, two hundred seven million, nine hundred sixteen thousand, four hundred eighty-seven".

Divisors: 1 3 4402638829 13207916487