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31100131130 = 2527111147183
BaseRepresentation
bin11100111101101101…
…100101011100111010
32222021102101100120112
4130331231211130322
51002143113144010
622142011424322
72150455516145
oct347555453472
988242340515
1031100131130
111220a238912
12603b4550a2
132c18290673
1417105bd05c
15c204d8a05
hex73db6573a

31100131130 has 16 divisors (see below), whose sum is σ = 56000934144. Its totient is φ = 12435452880.

The previous prime is 31100131129. The next prime is 31100131151. The reversal of 31100131130 is 3113100113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546482 + ... + 600701.

It is an arithmetic number, because the mean of its divisors is an integer number (3500058384).

Almost surely, 231100131130 is an apocalyptic number.

31100131130 is a deficient number, since it is larger than the sum of its proper divisors (24900803014).

31100131130 is a wasteful number, since it uses less digits than its factorization.

31100131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149901.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31100131130 its reverse (3113100113), we get a palindrome (34213231243).

The spelling of 31100131130 in words is "thirty-one billion, one hundred million, one hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 2711 5422 13555 27110 1147183 2294366 5735915 11471830 3110013113 6220026226 15550065565 31100131130