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31310143410031 = 374120639514443
BaseRepresentation
bin1110001111001111101011…
…11110011100111101101111
311002212012221201122211102021
413013213311332130331233
513100441133203110111
6150331403055211011
76411040353544603
oct707476576347557
9132765851584367
1031310143410031
119a81614779342
123618147816a67
1314616c2b56355
147a35c1b49503
153946ae488d71
hex1c79f5f9cf6f

31310143410031 has 8 divisors (see below), whose sum is σ = 32940665052624. Its totient is φ = 29720900796480.

The previous prime is 31310143410019. The next prime is 31310143410047. The reversal of 31310143410031 is 13001434101313.

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 31310143410031 - 217 = 31310143278959 is a prime.

It is a super-2 number, since 2×313101434100312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31310143409978 and 31310143410005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310143410431) 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, 10319755705 + ... + 10319758738.

It is an arithmetic number, because the mean of its divisors is an integer number (4117583131578).

Almost surely, 231310143410031 is an apocalyptic number.

31310143410031 is a deficient number, since it is larger than the sum of its proper divisors (1630521642593).

31310143410031 is a wasteful number, since it uses less digits than its factorization.

31310143410031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20639514521.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31310143410031 its reverse (13001434101313), we get a palindrome (44311577511344).

The spelling of 31310143410031 in words is "thirty-one trillion, three hundred ten billion, one hundred forty-three million, four hundred ten thousand, thirty-one".

Divisors: 1 37 41 1517 20639514443 763662034391 846220092163 31310143410031