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2132100031 = 3169672799
BaseRepresentation
bin111111100010101…
…0100001110111111
312111120220220101211
41333011110032333
513331304200111
6551322145251
7103556360035
oct17705241677
95446826354
102132100031
119a4573346
124b6052227
1327c949969
14163244555
15c72a8521
hex7f1543bf

2132100031 has 4 divisors (see below), whose sum is σ = 2132776000. Its totient is φ = 2131424064.

The previous prime is 2132100007. The next prime is 2132100041. The reversal of 2132100031 is 1300012312.

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

It is a cyclic number.

It is not a de Polignac number, because 2132100031 - 215 = 2132067263 is a prime.

It is a super-2 number, since 2×21321000312 = 9091701084380401922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132099984 and 2132100020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132100041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333231 + ... + 339568.

It is an arithmetic number, because the mean of its divisors is an integer number (533194000).

Almost surely, 22132100031 is an apocalyptic number.

2132100031 is a deficient number, since it is larger than the sum of its proper divisors (675969).

2132100031 is an equidigital number, since it uses as much as digits as its factorization.

2132100031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675968.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2132100031 is about 46174.6687156497. The cubic root of 2132100031 is about 1287.0710607566.

Adding to 2132100031 its reverse (1300012312), we get a palindrome (3432112343).

The spelling of 2132100031 in words is "two billion, one hundred thirty-two million, one hundred thousand, thirty-one".

Divisors: 1 3169 672799 2132100031