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13117412 = 2271142589
BaseRepresentation
bin110010000010…
…011111100100
3220200102201002
4302002133210
511324224122
61145052432
7216332120
oct62023744
926612632
1013117412
11744a340
124487118
1329437a9
141a56580
151241992
hexc827e4

13117412 has 24 divisors (see below), whose sum is σ = 28620480. Its totient is φ = 5110560.

The previous prime is 13117409. The next prime is 13117427. The reversal of 13117412 is 21471131.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20987 + ... + 21602.

It is an arithmetic number, because the mean of its divisors is an integer number (1192520).

Almost surely, 213117412 is an apocalyptic number.

It is an amenable number.

13117412 is an abundant number, since it is smaller than the sum of its proper divisors (15503068).

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

13117412 is a wasteful number, since it uses less digits than its factorization.

13117412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42611 (or 42609 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 13117412 is about 3621.7967916491. The cubic root of 13117412 is about 235.8392326504.

Adding to 13117412 its reverse (21471131), we get a palindrome (34588543).

The spelling of 13117412 in words is "thirteen million, one hundred seventeen thousand, four hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 42589 85178 170356 298123 468479 596246 936958 1192492 1873916 3279353 6558706 13117412