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5153117981 = 11617759263
BaseRepresentation
bin1001100110010011…
…00101011100011101
3111022010111111221112
410303021211130131
541023144233411
62211201111405
7241461531404
oct46311453435
914263444845
105153117981
1122048898a0
12bb9928565
136417aca4b
1436c55c63b
152025eeb8b
hex13326571d

5153117981 has 8 divisors (see below), whose sum is σ = 5630701824. Its totient is φ = 4677053920.

The previous prime is 5153117971. The next prime is 5153117987. The reversal of 5153117981 is 1897113515.

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

It is a de Polignac number, because none of the positive numbers 2k-5153117981 is a prime.

It is a super-2 number, since 2×51531179812 = 53109249852211032722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5153117987) 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 7 ways as a sum of consecutive naturals, for example, 372845 + ... + 386418.

It is an arithmetic number, because the mean of its divisors is an integer number (703837728).

Almost surely, 25153117981 is an apocalyptic number.

It is an amenable number.

5153117981 is a deficient number, since it is larger than the sum of its proper divisors (477583843).

5153117981 is a wasteful number, since it uses less digits than its factorization.

5153117981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759891.

The product of its digits is 37800, while the sum is 41.

The square root of 5153117981 is about 71785.2211879298. The cubic root of 5153117981 is about 1727.2559414730.

The spelling of 5153117981 in words is "five billion, one hundred fifty-three million, one hundred seventeen thousand, nine hundred eighty-one".

Divisors: 1 11 617 6787 759263 8351893 468465271 5153117981