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102074015 = 520414803
BaseRepresentation
bin1100001010110…
…00011010011111
321010001220020002
412011120122133
5202112332030
614043444515
72346420611
oct605303237
9233056202
10102074015
115268879a
122a22673b
13181bb834
14d7b0db1
158e64245
hex615869f

102074015 has 4 divisors (see below), whose sum is σ = 122488824. Its totient is φ = 81659208.

The previous prime is 102073999. The next prime is 102074039. The reversal of 102074015 is 510470201.

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

It is a cyclic number.

It is not a de Polignac number, because 102074015 - 24 = 102073999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10207397 + ... + 10207406.

It is an arithmetic number, because the mean of its divisors is an integer number (30622206).

Almost surely, 2102074015 is an apocalyptic number.

102074015 is a deficient number, since it is larger than the sum of its proper divisors (20414809).

102074015 is an equidigital number, since it uses as much as digits as its factorization.

102074015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20414808.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102074015 is about 10103.1685623868. The cubic root of 102074015 is about 467.3458593706.

The spelling of 102074015 in words is "one hundred two million, seventy-four thousand, fifteen".

Divisors: 1 5 20414803 102074015