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2031113313 = 358358491
BaseRepresentation
bin111100100010000…
…0101010001100001
312020112220020200000
41321010011101201
513124431111223
6533313450213
7101222115105
oct17104052141
95215806600
102031113313
11952568549
12488270969
13264a4bcc8
14153a77905
15bd4ab543
hex79105461

2031113313 has 12 divisors (see below), whose sum is σ = 3042491088. Its totient is φ = 1354075380.

The previous prime is 2031113297. The next prime is 2031113323. The reversal of 2031113313 is 3133111302.

It is a happy number.

2031113313 is a `hidden beast` number, since 20 + 311 + 1 + 331 + 3 = 666.

It is not a de Polignac number, because 2031113313 - 24 = 2031113297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031113323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4179003 + ... + 4179488.

It is an arithmetic number, because the mean of its divisors is an integer number (253540924).

Almost surely, 22031113313 is an apocalyptic number.

It is an amenable number.

2031113313 is a deficient number, since it is larger than the sum of its proper divisors (1011377775).

2031113313 is an frugal number, since it uses more digits than its factorization.

2031113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358506 (or 8358494 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2031113313 is about 45067.8745116741. The cubic root of 2031113313 is about 1266.4208468109.

Adding to 2031113313 its reverse (3133111302), we get a palindrome (5164224615).

The spelling of 2031113313 in words is "two billion, thirty-one million, one hundred thirteen thousand, three hundred thirteen".

Divisors: 1 3 9 27 81 243 8358491 25075473 75226419 225679257 677037771 2031113313