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7145592961 = 13549660997
BaseRepresentation
bin1101010011110100…
…10001100010000001
3200102222200201210011
412221322101202001
5104113232433321
63141014504521
7342034352353
oct65172214201
920388621704
107145592961
113037556831
121475065141
1389b520c20
144bb0190d3
152bc4c7ae1
hex1a9e91881

7145592961 has 4 divisors (see below), whose sum is σ = 7695253972. Its totient is φ = 6595931952.

The previous prime is 7145592959. The next prime is 7145593003. The reversal of 7145592961 is 1692955417.

It is a happy number.

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 1146161025 + 5999431936 = 33855^2 + 77456^2 .

It is a cyclic number.

It is not a de Polignac number, because 7145592961 - 21 = 7145592959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7145592931) 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, 274830486 + ... + 274830511.

It is an arithmetic number, because the mean of its divisors is an integer number (1923813493).

Almost surely, 27145592961 is an apocalyptic number.

It is an amenable number.

7145592961 is a deficient number, since it is larger than the sum of its proper divisors (549661011).

7145592961 is a wasteful number, since it uses less digits than its factorization.

7145592961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549661010.

The product of its digits is 680400, while the sum is 49.

The square root of 7145592961 is about 84531.6092417505. The cubic root of 7145592961 is about 1926.1026312196.

The spelling of 7145592961 in words is "seven billion, one hundred forty-five million, five hundred ninety-two thousand, nine hundred sixty-one".

Divisors: 1 13 549660997 7145592961