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23479382731 = 729531135861
BaseRepresentation
bin10101110111011110…
…101111001011001011
32020121022121020001211
4111313132233023023
5341041210221411
614441500353551
71460561313610
oct256736571313
966538536054
1023479382731
119a59554842
1246732458b7
1322a24a5b9c
1411ca438507
15926454221
hex5777af2cb

23479382731 has 8 divisors (see below), whose sum is σ = 26842690784. Its totient is φ = 20118352320.

The previous prime is 23479382659. The next prime is 23479382743. The reversal of 23479382731 is 13728397432.

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 23479382731 - 27 = 23479382603 is a prime.

It is a super-2 number, since 2×234793827312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23479382761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547260 + ... + 588601.

It is an arithmetic number, because the mean of its divisors is an integer number (3355336348).

Almost surely, 223479382731 is an apocalyptic number.

23479382731 is a deficient number, since it is larger than the sum of its proper divisors (3363308053).

23479382731 is a wasteful number, since it uses less digits than its factorization.

23479382731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138821.

The product of its digits is 1524096, while the sum is 49.

The spelling of 23479382731 in words is "twenty-three billion, four hundred seventy-nine million, three hundred eighty-two thousand, seven hundred thirty-one".

Divisors: 1 7 2953 20671 1135861 7951027 3354197533 23479382731