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13290992 = 24111337157
BaseRepresentation
bin110010101100…
…110111110000
3221000020210222
4302230313300
511400302432
61152512212
7220654151
oct62546760
927006728
1013290992
1175587a0
12454b668
1329a47c0
141a9d928
151278112
hexcacdf0

13290992 has 80 divisors (see below), whose sum is σ = 31268832. Its totient is φ = 5391360.

The previous prime is 13290983. The next prime is 13290997. The reversal of 13290992 is 29909231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290997) 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 15 ways as a sum of consecutive naturals, for example, 84578 + ... + 84734.

Almost surely, 213290992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13290992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15634416).

13290992 is an abundant number, since it is smaller than the sum of its proper divisors (17977840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13290992 is a wasteful number, since it uses less digits than its factorization.

13290992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13290992 is about 3645.6812806388. The cubic root of 13290992 is about 236.8749481230.

The spelling of 13290992 in words is "thirteen million, two hundred ninety thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 13 16 22 26 37 44 52 74 88 104 143 148 157 176 208 286 296 314 407 481 572 592 628 814 962 1144 1256 1628 1727 1924 2041 2288 2512 3256 3454 3848 4082 5291 5809 6512 6908 7696 8164 10582 11618 13816 16328 21164 22451 23236 27632 32656 42328 44902 46472 63899 75517 84656 89804 92944 127798 151034 179608 255596 302068 359216 511192 604136 830687 1022384 1208272 1661374 3322748 6645496 13290992