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2132313031 = 9631221401
BaseRepresentation
bin111111100011000…
…1000001111000111
312111121022201120201
41333012020033013
513331333004111
6551330511331
7103561235032
oct17706101707
95447281521
102132313031
119a46a9382
124b6135547
1327c9c28b4
1416329c019
15c72eb6c1
hex7f1883c7

2132313031 has 4 divisors (see below), whose sum is σ = 2132544064. Its totient is φ = 2132082000.

The previous prime is 2132312993. The next prime is 2132313103. The reversal of 2132313031 is 1303132312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2132313031 is a prime.

It is a super-2 number, since 2×21323130312 = 9093517724344813922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132313731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101070 + ... + 120331.

It is an arithmetic number, because the mean of its divisors is an integer number (533136016).

Almost surely, 22132313031 is an apocalyptic number.

2132313031 is a deficient number, since it is larger than the sum of its proper divisors (231033).

2132313031 is an equidigital number, since it uses as much as digits as its factorization.

2132313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231032.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2132313031 is about 46176.9751174760. The cubic root of 2132313031 is about 1287.1139194410.

Adding to 2132313031 its reverse (1303132312), we get a palindrome (3435445343).

The spelling of 2132313031 in words is "two billion, one hundred thirty-two million, three hundred thirteen thousand, thirty-one".

Divisors: 1 9631 221401 2132313031