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2131033401 = 33711275309
BaseRepresentation
bin111111100000100…
…1111110100111001
312111111220201021000
41333001033310321
513331021032101
6551243235213
7103544325240
oct17701176471
95444821230
102131033401
119a3a04a32
124b5818b09
1327c665313
14163047957
15c7147486
hex7f04fd39

2131033401 has 16 divisors (see below), whose sum is σ = 3608099200. Its totient is φ = 1217733264.

The previous prime is 2131033397. The next prime is 2131033409. The reversal of 2131033401 is 1043301312.

2131033401 is a `hidden beast` number, since 21 + 310 + 334 + 0 + 1 = 666.

It is not a de Polignac number, because 2131033401 - 22 = 2131033397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131033409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5637466 + ... + 5637843.

It is an arithmetic number, because the mean of its divisors is an integer number (225506200).

Almost surely, 22131033401 is an apocalyptic number.

2131033401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2131033401 is a deficient number, since it is larger than the sum of its proper divisors (1477065799).

2131033401 is a wasteful number, since it uses less digits than its factorization.

2131033401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275325 (or 11275319 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2131033401 is about 46163.1173232484. The cubic root of 2131033401 is about 1286.8563964071.

Adding to 2131033401 its reverse (1043301312), we get a palindrome (3174334713).

The spelling of 2131033401 in words is "two billion, one hundred thirty-one million, thirty-three thousand, four hundred one".

Divisors: 1 3 7 9 21 27 63 189 11275309 33825927 78927163 101477781 236781489 304433343 710344467 2131033401