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13023489915947 = 76492912865431
BaseRepresentation
bin1011110110000100010001…
…1111010111110000101011
31201010000220101220220012102
42331201010133113300223
53201334101404302242
643410524135004015
72512626135525350
oct275410437276053
951100811826172
1013023489915947
11417125a599275
12156405850960b
137361573ab774
143304a9a02627
15178b869bbe32
hexbd8447d7c2b

13023489915947 has 8 divisors (see below), whose sum is σ = 14884016593152. Its totient is φ = 11162970268200.

The previous prime is 13023489915913. The next prime is 13023489915979. The reversal of 13023489915947 is 74951998432031.

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 13023489915947 - 210 = 13023489914923 is a prime.

It is a super-2 number, since 2×130234899159472 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13023489915347) 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, 3112322 + ... + 5977752.

It is an arithmetic number, because the mean of its divisors is an integer number (1860502074144).

Almost surely, 213023489915947 is an apocalyptic number.

13023489915947 is a deficient number, since it is larger than the sum of its proper divisors (1860526677205).

13023489915947 is an equidigital number, since it uses as much as digits as its factorization.

13023489915947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514729.

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 13023489915947 in words is "thirteen trillion, twenty-three billion, four hundred eighty-nine million, nine hundred fifteen thousand, nine hundred forty-seven".

Divisors: 1 7 649291 2865431 4545037 20058017 1860498559421 13023489915947