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102501104423 = 525111951993
BaseRepresentation
bin101111101110110001…
…0101011101100100111
3100210120110220121111212
41133131202223230213
53134410240320143
6115031030222035
710256034004064
oct1373542535447
9323513817455
10102501104423
113a51a223953
1217a474b491b
139886a377a3
144d652bbc6b
1529edad2918
hex17dd8abb27

102501104423 has 4 divisors (see below), whose sum is σ = 102503108928. Its totient is φ = 102499099920.

The previous prime is 102501104413. The next prime is 102501104441. The reversal of 102501104423 is 324401105201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102501104423 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 (102501104413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923486 + ... + 1028507.

It is an arithmetic number, because the mean of its divisors is an integer number (25625777232).

Almost surely, 2102501104423 is an apocalyptic number.

102501104423 is a deficient number, since it is larger than the sum of its proper divisors (2004505).

102501104423 is an equidigital number, since it uses as much as digits as its factorization.

102501104423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004504.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 102501104423 its reverse (324401105201), we get a palindrome (426902209624).

The spelling of 102501104423 in words is "one hundred two billion, five hundred one million, one hundred four thousand, four hundred twenty-three".

Divisors: 1 52511 1951993 102501104423