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102354641 = 331930839
BaseRepresentation
bin1100001100111…
…00111011010001
321010121011011122
412012130323101
5202200322031
614053452025
72352000014
oct606347321
9233534148
10102354641
115285a614
122a341015
131828949c
14d84537b
158ebc47b
hex619ced1

102354641 has 4 divisors (see below), whose sum is σ = 102388800. Its totient is φ = 102320484.

The previous prime is 102354611. The next prime is 102354647. The reversal of 102354641 is 146453201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146453201 = 211694091.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102354641 is a prime.

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 102354641.

It is not an unprimeable number, because it can be changed into a prime (102354647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12101 + ... + 18738.

It is an arithmetic number, because the mean of its divisors is an integer number (25597200).

Almost surely, 2102354641 is an apocalyptic number.

It is an amenable number.

102354641 is a deficient number, since it is larger than the sum of its proper divisors (34159).

102354641 is an equidigital number, since it uses as much as digits as its factorization.

102354641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34158.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 102354641 is about 10117.0470494112. The cubic root of 102354641 is about 467.7737495158.

The spelling of 102354641 in words is "one hundred two million, three hundred fifty-four thousand, six hundred forty-one".

Divisors: 1 3319 30839 102354641