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2313331031 = 11647325043
BaseRepresentation
bin1000100111100010…
…1010000101010111
312222012221101121002
42021320222011113
514214203043111
61021314413515
7111216663224
oct21170520527
95865841532
102313331031
11a878a6930
1254689129b
132ab361c3b
1417d33c94b
15d815663b
hex89e2a157

2313331031 has 8 divisors (see below), whose sum is σ = 2527542144. Its totient is φ = 2099771320.

The previous prime is 2313331019. The next prime is 2313331037. The reversal of 2313331031 is 1301333132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2313331031 is a prime.

It is a super-2 number, since 2×23133310312 = 10703000917975045922, 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 = 2313330994 and 2313331012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313331037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155405 + ... + 169638.

It is an arithmetic number, because the mean of its divisors is an integer number (315942768).

Almost surely, 22313331031 is an apocalyptic number.

2313331031 is a deficient number, since it is larger than the sum of its proper divisors (214211113).

2313331031 is a wasteful number, since it uses less digits than its factorization.

2313331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325701.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 2313331031 is about 48097.1000269247. The cubic root of 2313331031 is about 1322.5515063624.

Adding to 2313331031 its reverse (1301333132), we get a palindrome (3614664163).

The spelling of 2313331031 in words is "two billion, three hundred thirteen million, three hundred thirty-one thousand, thirty-one".

Divisors: 1 11 647 7117 325043 3575473 210302821 2313331031