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2131310132 = 227407918661
BaseRepresentation
bin111111100001001…
…0011011000110100
312111112102202212022
41333002103120310
513331103411012
6551253212312
7103546560110
oct17702233064
95445382768
102131310132
119a4083936
124b5931098
1327c731273
141630ba740
15c719e472
hex7f093634

2131310132 has 24 divisors (see below), whose sum is σ = 4263893760. Its totient is φ = 913145760.

The previous prime is 2131310131. The next prime is 2131310191. The reversal of 2131310132 is 2310131312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131310132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131310131) 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, 104882 + ... + 123542.

It is an arithmetic number, because the mean of its divisors is an integer number (177662240).

Almost surely, 22131310132 is an apocalyptic number.

It is an amenable number.

2131310132 is an abundant number, since it is smaller than the sum of its proper divisors (2132583628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131310132 is a wasteful number, since it uses less digits than its factorization.

2131310132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751 (or 22749 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2131310132 is about 46166.1145430282. The cubic root of 2131310132 is about 1286.9120967141.

Adding to 2131310132 its reverse (2310131312), we get a palindrome (4441441444).

The spelling of 2131310132 in words is "two billion, one hundred thirty-one million, three hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 4079 8158 16316 18661 28553 37322 57106 74644 114212 130627 261254 522508 76118219 152236438 304472876 532827533 1065655066 2131310132