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2131202132 = 22975492789
BaseRepresentation
bin111111100000111…
…1001000001010100
312111112020021201022
41333001321001110
513331041432012
6551251020312
7103545630203
oct17701710124
95445207638
102131202132
119a400a784
124b589a698
1327c6c4067
1416308d23a
15c717c472
hex7f079054

2131202132 has 12 divisors (see below), whose sum is σ = 3768053940. Its totient is φ = 1054615296.

The previous prime is 2131202107. The next prime is 2131202153. The reversal of 2131202132 is 2312021312.

It can be written as a sum of positive squares in 2 ways, for example, as 1310150416 + 821051716 = 36196^2 + 28654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2131202132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2746007 + ... + 2746782.

It is an arithmetic number, because the mean of its divisors is an integer number (314004495).

Almost surely, 22131202132 is an apocalyptic number.

It is an amenable number.

2131202132 is a deficient number, since it is larger than the sum of its proper divisors (1636851808).

2131202132 is a wasteful number, since it uses less digits than its factorization.

2131202132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492890 (or 5492888 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2131202132 is about 46164.9448391309. The cubic root of 2131202132 is about 1286.8903590902.

Adding to 2131202132 its reverse (2312021312), we get a palindrome (4443223444).

The spelling of 2131202132 in words is "two billion, one hundred thirty-one million, two hundred two thousand, one hundred thirty-two".

Divisors: 1 2 4 97 194 388 5492789 10985578 21971156 532800533 1065601066 2131202132