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7268272057 = 21134446787
BaseRepresentation
bin1101100010011100…
…10000011110111001
3200202112112110212101
412301032100132321
5104341134201212
63201120143401
7345054202354
oct66116203671
920675473771
107268272057
11309a828412
1214aa167b61
138baa753c7
144cd43129b
152c815c157
hex1b13907b9

7268272057 has 4 divisors (see below), whose sum is σ = 7302719056. Its totient is φ = 7233825060.

The previous prime is 7268272049. The next prime is 7268272087. The reversal of 7268272057 is 7502728627.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7502728627 = 31323970379.

It is a cyclic number.

It is not a de Polignac number, because 7268272057 - 23 = 7268272049 is a prime.

It is a super-2 number, since 2×72682720572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7268271998 and 7268272016.

It is not an unprimeable number, because it can be changed into a prime (7268272087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17223183 + ... + 17223604.

It is an arithmetic number, because the mean of its divisors is an integer number (1825679764).

Almost surely, 27268272057 is an apocalyptic number.

It is an amenable number.

7268272057 is a deficient number, since it is larger than the sum of its proper divisors (34446999).

7268272057 is a wasteful number, since it uses less digits than its factorization.

7268272057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34446998.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 7268272057 is about 85254.1615230600. The cubic root of 7268272057 is about 1937.0629075030.

The spelling of 7268272057 in words is "seven billion, two hundred sixty-eight million, two hundred seventy-two thousand, fifty-seven".

Divisors: 1 211 34446787 7268272057