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102858399889 = 723638872049
BaseRepresentation
bin101111111001011010…
…1101010000010010001
3100211111101020002202021
41133302311222002101
53141123222244024
6115130312251441
710300632654610
oct1376265520221
9324441202667
10102858399889
113a692981263
1217b270a0b81
139912a7651b
144d9a927877
152a2015cde4
hex17f2d6a091

102858399889 has 8 divisors (see below), whose sum is σ = 122663433600. Its totient is φ = 84331110336.

The previous prime is 102858399883. The next prime is 102858399929. The reversal of 102858399889 is 988993858201.

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 102858399889 - 215 = 102858367121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102858399883) 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 7 ways as a sum of consecutive naturals, for example, 319435864 + ... + 319436185.

It is an arithmetic number, because the mean of its divisors is an integer number (15332929200).

Almost surely, 2102858399889 is an apocalyptic number.

It is an amenable number.

102858399889 is a deficient number, since it is larger than the sum of its proper divisors (19805033711).

102858399889 is an equidigital number, since it uses as much as digits as its factorization.

102858399889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638872079.

The product of its (nonzero) digits is 89579520, while the sum is 70.

The spelling of 102858399889 in words is "one hundred two billion, eight hundred fifty-eight million, three hundred ninety-nine thousand, eight hundred eighty-nine".

Divisors: 1 7 23 161 638872049 4472104343 14694057127 102858399889