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8057809213 = 236124123831
BaseRepresentation
bin1111000000100100…
…00110100100111101
3202210120012010020021
413200102012210331
5113000244343323
63411322452141
7403452151066
oct74022064475
922716163207
108057809213
113465472363
12168a664051
139b5503b5c
1456623556d
1532261905d
hex1e048693d

8057809213 has 16 divisors (see below), whose sum is σ = 8581807872. Its totient is φ = 7549344000.

The previous prime is 8057809211. The next prime is 8057809217. The reversal of 8057809213 is 3129087508.

It is a cyclic number.

It is not a de Polignac number, because 8057809213 - 21 = 8057809211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8057809213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8057809211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326208 + ... + 350038.

It is an arithmetic number, because the mean of its divisors is an integer number (536362992).

Almost surely, 28057809213 is an apocalyptic number.

It is an amenable number.

8057809213 is a deficient number, since it is larger than the sum of its proper divisors (523998659).

8057809213 is a wasteful number, since it uses less digits than its factorization.

8057809213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24156.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 8057809213 is about 89765.3007180392. The cubic root of 8057809213 is about 2004.8058769402.

The spelling of 8057809213 in words is "eight billion, fifty-seven million, eight hundred nine thousand, two hundred thirteen".

Divisors: 1 23 61 241 1403 5543 14701 23831 338123 548113 1453691 5743271 33434893 132095233 350339531 8057809213