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10404404012 = 224360490721
BaseRepresentation
bin10011011000010011…
…01001101100101100
3222212002201111010202
421230021221230230
5132302011412022
64440230253032
7515554655252
oct115411515454
928762644122
1010404404012
11445a018802
1220244b7178
13c9a7114a2
14709b525d2
1540d641592
hex26c269b2c

10404404012 has 12 divisors (see below), whose sum is σ = 18631142376. Its totient is φ = 5081220480.

The previous prime is 10404403987. The next prime is 10404404051. The reversal of 10404404012 is 21040440401.

It is a happy number.

It is a super-2 number, since 2×104044040122 (a number of 21 digits) contains 22 as substring.

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, 30245189 + ... + 30245532.

It is an arithmetic number, because the mean of its divisors is an integer number (1552595198).

Almost surely, 210404404012 is an apocalyptic number.

It is an amenable number.

10404404012 is a deficient number, since it is larger than the sum of its proper divisors (8226738364).

10404404012 is a wasteful number, since it uses less digits than its factorization.

10404404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60490768 (or 60490766 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 10404404012 its reverse (21040440401), we get a palindrome (31444844413).

It can be divided in two parts, 1040440401 and 2, that multiplied together give a palindrome (2080880802).

The spelling of 10404404012 in words is "ten billion, four hundred four million, four hundred four thousand, twelve".

Divisors: 1 2 4 43 86 172 60490721 120981442 241962884 2601101003 5202202006 10404404012