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10616251681 = 717313285023
BaseRepresentation
bin10011110001100011…
…10010010100100001
31000101212100110111201
421320301302110201
5133220230023211
64513235041201
7524036436040
oct117061622441
930355313451
1010616251681
114558663022
122083440201
131002586339
14729d3a557
1542203b0c1
hex278c72521

10616251681 has 16 divisors (see below), whose sum is σ = 12887645184. Its totient is φ = 8536978944.

The previous prime is 10616251669. The next prime is 10616251687. The reversal of 10616251681 is 18615261601.

It is not a de Polignac number, because 10616251681 - 217 = 10616120609 is a prime.

It is a super-2 number, since 2×106162516812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10616251681.

It is not an unprimeable number, because it can be changed into a prime (10616251687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105265 + ... + 179758.

It is an arithmetic number, because the mean of its divisors is an integer number (805477824).

Almost surely, 210616251681 is an apocalyptic number.

It is an amenable number.

10616251681 is a deficient number, since it is larger than the sum of its proper divisors (2271393503).

10616251681 is a wasteful number, since it uses less digits than its factorization.

10616251681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285360.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 10616251681 in words is "ten billion, six hundred sixteen million, two hundred fifty-one thousand, six hundred eighty-one".

Divisors: 1 7 17 119 313 2191 5321 37247 285023 1995161 4845391 33917737 89212199 624485393 1516607383 10616251681