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31200024113 = 131317751319
BaseRepresentation
bin11101000011101010…
…101001011000110001
32222112101100102222122
4131003222221120301
51002344201232423
622155540444025
72153110554266
oct350352513061
988471312878
1031200024113
11122606669a5
1260689a9615
132c32b9753b
14171d98326d
15c2916b8c8
hex743aa9631

31200024113 has 8 divisors (see below), whose sum is σ = 31537408320. Its totient is φ = 30864143440.

The previous prime is 31200024091. The next prime is 31200024179. The reversal of 31200024113 is 31142000213.

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 31200024113 - 26 = 31200024049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31200024091 and 31200024100.

It is not an unprimeable number, because it can be changed into a prime (31200024313) 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, 334133 + ... + 417186.

It is an arithmetic number, because the mean of its divisors is an integer number (3942176040).

Almost surely, 231200024113 is an apocalyptic number.

It is an amenable number.

31200024113 is a deficient number, since it is larger than the sum of its proper divisors (337384207).

31200024113 is a wasteful number, since it uses less digits than its factorization.

31200024113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751767.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31200024113 its reverse (31142000213), we get a palindrome (62342024326).

The spelling of 31200024113 in words is "thirty-one billion, two hundred million, twenty-four thousand, one hundred thirteen".

Divisors: 1 131 317 41527 751319 98422789 238168123 31200024113