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31003840011 = 322745526931
BaseRepresentation
bin11100110111111110…
…010000111000001011
32222000201012020222210
4130313332100320023
51001443440340021
622124251520203
72145206202054
oct346776207013
988021166883
1031003840011
111216a94a981
126013159063
132c01348081
1417018b572b
15c16d17e76
hex737f90e0b

31003840011 has 8 divisors (see below), whose sum is σ = 41520561984. Its totient is φ = 20578172360.

The previous prime is 31003839983. The next prime is 31003840033. The reversal of 31003840011 is 11004830013.

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 31003840011 - 213 = 31003831819 is a prime.

It is a super-2 number, since 2×310038400112 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31003840011.

It is not an unprimeable number, because it can be changed into a prime (31003840111) 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, 22762785 + ... + 22764146.

It is an arithmetic number, because the mean of its divisors is an integer number (5190070248).

Almost surely, 231003840011 is an apocalyptic number.

31003840011 is a deficient number, since it is larger than the sum of its proper divisors (10516721973).

31003840011 is a wasteful number, since it uses less digits than its factorization.

31003840011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45527161.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 31003840011 in words is "thirty-one billion, three million, eight hundred forty thousand, eleven".

Divisors: 1 3 227 681 45526931 136580793 10334613337 31003840011