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7157150065 = 513793713873
BaseRepresentation
bin1101010101001100…
…10111000101110001
3200110210102220011001
412222212113011301
5104124212300230
63142110322001
7342234525502
oct65246270561
920423386131
107157150065
11304302a85a
121478ab9301
138a0a39450
144bc786ba9
152bd50c0ca
hex1aa997171

7157150065 has 16 divisors (see below), whose sum is σ = 9251072208. Its totient is φ = 5284233216.

The previous prime is 7157150041. The next prime is 7157150087. The reversal of 7157150065 is 5600517517.

It can be written as a sum of positive squares in 8 ways, for example, as 29062881 + 7128087184 = 5391^2 + 84428^2 .

It is a cyclic number.

It is not a de Polignac number, because 7157150065 - 221 = 7155052913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 508969 + ... + 522841.

It is an arithmetic number, because the mean of its divisors is an integer number (578192013).

Almost surely, 27157150065 is an apocalyptic number.

It is an amenable number.

7157150065 is a deficient number, since it is larger than the sum of its proper divisors (2093922143).

7157150065 is a wasteful number, since it uses less digits than its factorization.

7157150065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21828.

The product of its (nonzero) digits is 36750, while the sum is 37.

The square root of 7157150065 is about 84599.9412824855. The cubic root of 7157150065 is about 1927.1404820228.

The spelling of 7157150065 in words is "seven billion, one hundred fifty-seven million, one hundred fifty thousand, sixty-five".

Divisors: 1 5 13 65 7937 13873 39685 69365 103181 180349 515905 901745 110110001 550550005 1431430013 7157150065