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19139675 = 52765587
BaseRepresentation
bin100100100000…
…0110001011011
31100000101200212
41021000301123
514344432200
61522121335
7321453542
oct111006133
940011625
1019139675
11a892a15
1264b024b
133c71969
142783159
151a31035
hex1240c5b

19139675 has 6 divisors (see below), whose sum is σ = 23733228. Its totient is φ = 15311720.

The previous prime is 19139663. The next prime is 19139711. The reversal of 19139675 is 57693191.

It is not a de Polignac number, because 19139675 - 212 = 19135579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 382769 + ... + 382818.

It is an arithmetic number, because the mean of its divisors is an integer number (3955538).

Almost surely, 219139675 is an apocalyptic number.

19139675 is a deficient number, since it is larger than the sum of its proper divisors (4593553).

19139675 is an equidigital number, since it uses as much as digits as its factorization.

19139675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765597 (or 765592 counting only the distinct ones).

The product of its digits is 51030, while the sum is 41.

The square root of 19139675 is about 4374.8914272242. The cubic root of 19139675 is about 267.4924445416.

The spelling of 19139675 in words is "nineteen million, one hundred thirty-nine thousand, six hundred seventy-five".

Divisors: 1 5 25 765587 3827935 19139675