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13392943 = 71188633
BaseRepresentation
bin110011000101…
…110000101111
3221012102122221
4303011300233
511412033233
61155020211
7221560324
oct63056057
927172587
1013392943
117618353
12459a667
132a0c025
141ac8b4b
15129842d
hexcc5c2f

13392943 has 4 divisors (see below), whose sum is σ = 13581648. Its totient is φ = 13204240.

The previous prime is 13392901. The next prime is 13392971. The reversal of 13392943 is 34929331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13392943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13392899 and 13392908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13392143) 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, 94246 + ... + 94387.

It is an arithmetic number, because the mean of its divisors is an integer number (3395412).

Almost surely, 213392943 is an apocalyptic number.

13392943 is a deficient number, since it is larger than the sum of its proper divisors (188705).

13392943 is an equidigital number, since it uses as much as digits as its factorization.

13392943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188704.

The product of its digits is 17496, while the sum is 34.

The square root of 13392943 is about 3659.6370038571. The cubic root of 13392943 is about 237.4790703625.

The spelling of 13392943 in words is "thirteen million, three hundred ninety-two thousand, nine hundred forty-three".

Divisors: 1 71 188633 13392943