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8043107057 = 10973789973
BaseRepresentation
bin1110111110110100…
…00001001011110001
3202202112112011122222
413133122001023301
5112433013411212
63410035410425
7403213165466
oct73732011361
922675464588
108043107057
113458140417
121685753a15
139b2456c5b
145642c966d
153211b2c72
hex1df6812f1

8043107057 has 4 divisors (see below), whose sum is σ = 8116897140. Its totient is φ = 7969316976.

The previous prime is 8043107047. The next prime is 8043107069. The reversal of 8043107057 is 7507013408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4243740736 + 3799366321 = 65144^2 + 61639^2 .

It is a cyclic number.

It is not a de Polignac number, because 8043107057 - 220 = 8042058481 is a prime.

It is a super-2 number, since 2×80431070572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8043107047) 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, 36894878 + ... + 36895095.

It is an arithmetic number, because the mean of its divisors is an integer number (2029224285).

Almost surely, 28043107057 is an apocalyptic number.

It is an amenable number.

8043107057 is a deficient number, since it is larger than the sum of its proper divisors (73790083).

8043107057 is a wasteful number, since it uses less digits than its factorization.

8043107057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73790082.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 8043107057 is about 89683.3711286546. The cubic root of 8043107057 is about 2003.5858218486.

The spelling of 8043107057 in words is "eight billion, forty-three million, one hundred seven thousand, fifty-seven".

Divisors: 1 109 73789973 8043107057