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104919631 = 176171743
BaseRepresentation
bin1100100000011…
…11001001001111
321022102110200021
412100033021033
5203324412011
614224443011
72412542065
oct620171117
9238373607
10104919631
1154251743
122b179467
1318976b2b
14dd12035
159327471
hex640f24f

104919631 has 4 divisors (see below), whose sum is σ = 111091392. Its totient is φ = 98747872.

The previous prime is 104919601. The next prime is 104919637. The reversal of 104919631 is 136919401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136919401 = 151906751.

It is a cyclic number.

It is not a de Polignac number, because 104919631 - 217 = 104788559 is a prime.

It is a super-2 number, since 2×1049196312 = 22016257938352322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104919637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085855 + ... + 3085888.

It is an arithmetic number, because the mean of its divisors is an integer number (27772848).

Almost surely, 2104919631 is an apocalyptic number.

104919631 is a deficient number, since it is larger than the sum of its proper divisors (6171761).

104919631 is an equidigital number, since it uses as much as digits as its factorization.

104919631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171760.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 104919631 is about 10243.0284096062. The cubic root of 104919631 is about 471.6490002137.

The spelling of 104919631 in words is "one hundred four million, nine hundred nineteen thousand, six hundred thirty-one".

Divisors: 1 17 6171743 104919631