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3040312331 = 7434330333
BaseRepresentation
bin1011010100110111…
…0111110000001011
321211212212212110102
42311031313300023
522211304443311
61221404240015
7135225141230
oct26515676013
97755785412
103040312331
1113201a4721
1270a24000b
13395b5a2a4
1420badb787
1512bda843b
hexb5377c0b

3040312331 has 4 divisors (see below), whose sum is σ = 3474642672. Its totient is φ = 2605981992.

The previous prime is 3040312307. The next prime is 3040312337. The reversal of 3040312331 is 1332130403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1332130403 = 11311117773.

It is a cyclic number.

It is not a de Polignac number, because 3040312331 - 222 = 3036118027 is a prime.

It is a super-2 number, since 2×30403123312 = 18486998140061307122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3040312337) 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, 217165160 + ... + 217165173.

It is an arithmetic number, because the mean of its divisors is an integer number (868660668).

Almost surely, 23040312331 is an apocalyptic number.

3040312331 is a deficient number, since it is larger than the sum of its proper divisors (434330341).

3040312331 is an equidigital number, since it uses as much as digits as its factorization.

3040312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434330340.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3040312331 is about 55139.0272946486. The cubic root of 3040312331 is about 1448.6808980047.

Adding to 3040312331 its reverse (1332130403), we get a palindrome (4372442734).

The spelling of 3040312331 in words is "three billion, forty million, three hundred twelve thousand, three hundred thirty-one".

Divisors: 1 7 434330333 3040312331