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523560961 = 71122330491
BaseRepresentation
bin11111001101001…
…110100000000001
31100111011122121201
4133031032200001
52033012422321
6123541421201
715655123540
oct3715164001
91314148551
10523560961
1124959a110
1212740a801
13846142b1
144d76a157
1530e6e291
hex1f34e801

523560961 has 16 divisors (see below), whose sum is σ = 655699968. Its totient is φ = 406126800.

The previous prime is 523560959. The next prime is 523560971. The reversal of 523560961 is 169065325.

It is a cyclic number.

It is not a de Polignac number, because 523560961 - 21 = 523560959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523560961.

It is not an unprimeable number, because it can be changed into a prime (523560901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 32416.

It is an arithmetic number, because the mean of its divisors is an integer number (40981248).

Almost surely, 2523560961 is an apocalyptic number.

It is an amenable number.

523560961 is a deficient number, since it is larger than the sum of its proper divisors (132139007).

523560961 is a wasteful number, since it uses less digits than its factorization.

523560961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30732.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 523560961 is about 22881.4545210745. The cubic root of 523560961 is about 805.9765733801.

The spelling of 523560961 in words is "five hundred twenty-three million, five hundred sixty thousand, nine hundred sixty-one".

Divisors: 1 7 11 77 223 1561 2453 17171 30491 213437 335401 2347807 6799493 47596451 74794423 523560961