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13000727983 = 79164566177
BaseRepresentation
bin11000001101110011…
…10101110110101111
31020120001011102001211
430012321311312233
5203111141243413
65550014415251
7640112236015
oct140671656657
936501142054
1013000727983
1155716323a1
122629b01527
1312c2598169
148b48b88b5
1551154783d
hex306e75daf

13000727983 has 4 divisors (see below), whose sum is σ = 13165294240. Its totient is φ = 12836161728.

The previous prime is 13000727981. The next prime is 13000728011. The reversal of 13000727983 is 38972700031.

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 13000727983 - 21 = 13000727981 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 (13000727981) 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, 82283010 + ... + 82283167.

It is an arithmetic number, because the mean of its divisors is an integer number (3291323560).

Almost surely, 213000727983 is an apocalyptic number.

13000727983 is a deficient number, since it is larger than the sum of its proper divisors (164566257).

13000727983 is an equidigital number, since it uses as much as digits as its factorization.

13000727983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164566256.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 13000727983 in words is "thirteen billion, seven hundred twenty-seven thousand, nine hundred eighty-three".

Divisors: 1 79 164566177 13000727983