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2004313031 = 7537176091
BaseRepresentation
bin111011101110111…
…0110001111000111
312011200110122120222
41313131312033013
513101101004111
6530515214555
7100445244140
oct16735661707
95150418528
102004313031
11939423056
1247b2a745b
1325c327556
1415029cac7
15bae657db
hex777763c7

2004313031 has 16 divisors (see below), whose sum is σ = 2366765568. Its totient is φ = 1661805600.

The previous prime is 2004313027. The next prime is 2004313043. The reversal of 2004313031 is 1303134002.

It is a happy number.

It is not a de Polignac number, because 2004313031 - 22 = 2004313027 is a prime.

It is a super-2 number, since 2×20043130312 = 8034541452472813922, 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 (2004312031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11705 + ... + 64386.

It is an arithmetic number, because the mean of its divisors is an integer number (147922848).

Almost surely, 22004313031 is an apocalyptic number.

2004313031 is a deficient number, since it is larger than the sum of its proper divisors (362452537).

2004313031 is an equidigital number, since it uses as much as digits as its factorization.

2004313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76222.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2004313031 is about 44769.5547330996. The cubic root of 2004313031 is about 1260.8260793939.

Adding to 2004313031 its reverse (1303134002), we get a palindrome (3307447033).

The spelling of 2004313031 in words is "two billion, four million, three hundred thirteen thousand, thirty-one".

Divisors: 1 7 53 71 371 497 3763 26341 76091 532637 4032823 5402461 28229761 37817227 286330433 2004313031