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102385418 = 267775617
BaseRepresentation
bin1100001101001…
…00011100001010
321010122201101112
412012210130022
5202202313133
614054250322
72352155522
oct606443412
9233581345
10102385418
1152880753
122a3569a2
131829a4b5
14d852682
158ec6648
hex61a470a

102385418 has 8 divisors (see below), whose sum is σ = 153807012. Its totient is φ = 51116416.

The previous prime is 102385403. The next prime is 102385427. The reversal of 102385418 is 814583201.

It can be written as a sum of positive squares in 2 ways, for example, as 97081609 + 5303809 = 9853^2 + 2303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36455 + ... + 39162.

Almost surely, 2102385418 is an apocalyptic number.

102385418 is a deficient number, since it is larger than the sum of its proper divisors (51421594).

102385418 is an equidigital number, since it uses as much as digits as its factorization.

102385418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76296.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 102385418 is about 10118.5679816859. The cubic root of 102385418 is about 467.8206297543.

The spelling of 102385418 in words is "one hundred two million, three hundred eighty-five thousand, four hundred eighteen".

Divisors: 1 2 677 1354 75617 151234 51192709 102385418