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8520288860161 = 13991661359067
BaseRepresentation
bin111101111111100100011…
…0010100111100000000001
31010011112100120200000000001
41323333020302213200001
52104044022422011121
630042100000000001
71536366462234451
oct173771062474001
933145316600001
108520288860161
112795485a35661
12b57357600001
1349a5c9217020
1421655429bd61
15eb973d72991
hex7bfc8ca7801

8520288860161 has 8 divisors (see below), whose sum is σ = 9184954736384. Its totient is φ = 7856945704080.

The previous prime is 8520288860159. The next prime is 8520288860189. The reversal of 8520288860161 is 1610688820258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8520288860161 - 21 = 8520288860159 is a prime.

It is a super-2 number, since 2×85202888601612 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8520288810161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330666651 + ... + 330692416.

It is an arithmetic number, because the mean of its divisors is an integer number (1148119342048).

Almost surely, 28520288860161 is an apocalyptic number.

It is an amenable number.

8520288860161 is a deficient number, since it is larger than the sum of its proper divisors (664665876223).

8520288860161 is a wasteful number, since it uses less digits than its factorization.

8520288860161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661360071.

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 8520288860161 in words is "eight trillion, five hundred twenty billion, two hundred eighty-eight million, eight hundred sixty thousand, one hundred sixty-one".

Divisors: 1 13 991 12883 661359067 8597667871 655406835397 8520288860161