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104653631 = 472226673
BaseRepresentation
bin1100011110011…
…10001100111111
321021220221210102
412033032030333
5203242404011
614215031315
72410353425
oct617161477
9237827712
10104653631
115408a905
122b06b53b
13188b2a34
14dc83115
1592c373b
hex63ce33f

104653631 has 4 divisors (see below), whose sum is σ = 106880352. Its totient is φ = 102426912.

The previous prime is 104653609. The next prime is 104653651. The reversal of 104653631 is 136356401.

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: 136356401 = 183174471.

It is a de Polignac number, because none of the positive numbers 2k-104653631 is a prime.

It is a super-2 number, since 2×1046536312 = 21904764962968322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 104653594 and 104653603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104653651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113290 + ... + 1113383.

It is an arithmetic number, because the mean of its divisors is an integer number (26720088).

Almost surely, 2104653631 is an apocalyptic number.

104653631 is a deficient number, since it is larger than the sum of its proper divisors (2226721).

104653631 is an equidigital number, since it uses as much as digits as its factorization.

104653631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226720.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 104653631 is about 10230.0357281879. The cubic root of 104653631 is about 471.2500764329.

The spelling of 104653631 in words is "one hundred four million, six hundred fifty-three thousand, six hundred thirty-one".

Divisors: 1 47 2226673 104653631