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29124315231 = 3118391051913
BaseRepresentation
bin11011000111111100…
…011100100001011111
32210011201112111200220
4123013330130201133
5434121311041411
621213551052423
72050504411014
oct330774344137
983151474626
1029124315231
1111395a0a110
125789811113
132991b3302b
1415a401b70b
15b56d01b06
hex6c7f1c85f

29124315231 has 16 divisors (see below), whose sum is σ = 42413172480. Its totient is φ = 17630045120.

The previous prime is 29124315229. The next prime is 29124315263. The reversal of 29124315231 is 13251342192.

It is a cyclic number.

It is not a de Polignac number, because 29124315231 - 21 = 29124315229 is a prime.

It is a super-2 number, since 2×291243152312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 29124315192 and 29124315201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29124315211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498270 + ... + 553643.

It is an arithmetic number, because the mean of its divisors is an integer number (2650823280).

Almost surely, 229124315231 is an apocalyptic number.

29124315231 is a deficient number, since it is larger than the sum of its proper divisors (13288857249).

29124315231 is a wasteful number, since it uses less digits than its factorization.

29124315231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052766.

The product of its digits is 12960, while the sum is 33.

The spelling of 29124315231 in words is "twenty-nine billion, one hundred twenty-four million, three hundred fifteen thousand, two hundred thirty-one".

Divisors: 1 3 11 33 839 2517 9229 27687 1051913 3155739 11571043 34713129 882555007 2647665021 9708105077 29124315231