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102107745455 = 553390798621
BaseRepresentation
bin101111100011000011…
…0001000110010101111
3100202120001201220110012
41133012012020302233
53133104040323310
6114524015203435
710243216341662
oct1370606106257
9322501656405
10102107745455
113a3381844a1
121795781657b
1398233acbc1
144d28d656d9
1529c92d1c05
hex17c6188caf

102107745455 has 16 divisors (see below), whose sum is σ = 124874387424. Its totient is φ = 80123621760.

The previous prime is 102107745449. The next prime is 102107745457. The reversal of 102107745455 is 554547701201.

It is a de Polignac number, because none of the positive numbers 2k-102107745455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102107745457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986045 + ... + 1084665.

It is an arithmetic number, because the mean of its divisors is an integer number (7804649214).

Almost surely, 2102107745455 is an apocalyptic number.

102107745455 is a deficient number, since it is larger than the sum of its proper divisors (22766641969).

102107745455 is an equidigital number, since it uses as much as digits as its factorization.

102107745455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102586.

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 102107745455 in words is "one hundred two billion, one hundred seven million, seven hundred forty-five thousand, four hundred fifty-five".

Divisors: 1 5 53 265 3907 19535 98621 207071 493105 1035355 5226913 26134565 385312247 1926561235 20421549091 102107745455