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31000130110 = 253100013011
BaseRepresentation
bin11100110111110000…
…000111001000111110
32222000110012202222001
4130313300013020332
51001442013130420
622124040212514
72145132521035
oct346760071076
988013182861
1031000130110
1112168846644
126011a6a13a
132c00649571
1417011cb71c
15c16833b0a
hex737c0723e

31000130110 has 8 divisors (see below), whose sum is σ = 55800234216. Its totient is φ = 12400052040.

The previous prime is 31000130099. The next prime is 31000130113. The reversal of 31000130110 is 1103100013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×310001301102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 3100013011 = 31000130110 / (3 + 1 + 0 + 0 + 0 + 1 + 3 + 0 + 1 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000130113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550006496 + ... + 1550006515.

It is an arithmetic number, because the mean of its divisors is an integer number (6975029277).

Almost surely, 231000130110 is an apocalyptic number.

31000130110 is a deficient number, since it is larger than the sum of its proper divisors (24800104106).

31000130110 is a wasteful number, since it uses less digits than its factorization.

31000130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100013018.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 31000130110 its reverse (1103100013), we get a palindrome (32103230123).

The spelling of 31000130110 in words is "thirty-one billion, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 10 3100013011 6200026022 15500065055 31000130110