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8041512313 = 31259403623
BaseRepresentation
bin1110111110100111…
…11011110101111001
3202202102112011002101
413133103323311321
5112432111343223
63405541303401
7403163504212
oct73723736571
922672464071
108041512313
11345725124a
121685104b61
139b2019113
14563dd2409
15320e9a4ad
hex1df4fbd79

8041512313 has 4 divisors (see below), whose sum is σ = 8300915968. Its totient is φ = 7782108660.

The previous prime is 8041512307. The next prime is 8041512317. The reversal of 8041512313 is 3132151408.

It is a happy number.

8041512313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8041512313 - 229 = 7504641401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8041512317) 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, 129701781 + ... + 129701842.

It is an arithmetic number, because the mean of its divisors is an integer number (2075228992).

Almost surely, 28041512313 is an apocalyptic number.

It is an amenable number.

8041512313 is a deficient number, since it is larger than the sum of its proper divisors (259403655).

8041512313 is a wasteful number, since it uses less digits than its factorization.

8041512313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259403654.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8041512313 is about 89674.4797197062. The cubic root of 8041512313 is about 2003.4533930229.

The spelling of 8041512313 in words is "eight billion, forty-one million, five hundred twelve thousand, three hundred thirteen".

Divisors: 1 31 259403623 8041512313