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2131320110 = 251009121121
BaseRepresentation
bin111111100001001…
…0101110100101110
312111112110021112212
41333002111310232
513331104220420
6551253330422
7103546631153
oct17702256456
95445407485
102131320110
119a4090387
124b5936a12
1327c73597a
141630c022a
15c71a23c5
hex7f095d2e

2131320110 has 16 divisors (see below), whose sum is σ = 3836938032. Its totient is φ = 852403200.

The previous prime is 2131320077. The next prime is 2131320119. The reversal of 2131320110 is 110231312.

It is a super-2 number, since 2×21313201102 = 9085050822580824200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131320119) 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, 90350 + ... + 111470.

It is an arithmetic number, because the mean of its divisors is an integer number (239808627).

Almost surely, 22131320110 is an apocalyptic number.

2131320110 is a deficient number, since it is larger than the sum of its proper divisors (1705617922).

2131320110 is a wasteful number, since it uses less digits than its factorization.

2131320110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31219.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131320110 is about 46166.2226091761. Note that the first 3 decimals coincide. The cubic root of 2131320110 is about 1286.9141049920.

Adding to 2131320110 its reverse (110231312), we get a palindrome (2241551422).

The spelling of 2131320110 in words is "two billion, one hundred thirty-one million, three hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 10 10091 20182 21121 42242 50455 100910 105605 211210 213132011 426264022 1065660055 2131320110