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102890268993 = 3107362388471
BaseRepresentation
bin101111111010010111…
…1001110100101000001
3100211120121012012221110
41133310233032211001
53141204402101433
6115133411313533
710301500566501
oct1376457164501
9324517165843
10102890268993
113a6a9968a66
1217b358ab8a9
139919554195
144da0c61a01
152a22d55963
hex17f4bce941

102890268993 has 16 divisors (see below), whose sum is σ = 138508932096. Its totient is φ = 67932928080.

The previous prime is 102890268991. The next prime is 102890269003. The reversal of 102890268993 is 399862098201.

It is not a de Polignac number, because 102890268993 - 21 = 102890268991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102890268991) 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, 1118748 + ... + 1207218.

It is an arithmetic number, because the mean of its divisors is an integer number (8656808256).

Almost surely, 2102890268993 is an apocalyptic number.

It is an amenable number.

102890268993 is a deficient number, since it is larger than the sum of its proper divisors (35618663103).

102890268993 is a wasteful number, since it uses less digits than its factorization.

102890268993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92204.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 102890268993 in words is "one hundred two billion, eight hundred ninety million, two hundred sixty-eight thousand, nine hundred ninety-three".

Divisors: 1 3 107 321 3623 10869 88471 265413 387661 1162983 9466397 28399191 320530433 961591299 34296756331 102890268993