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13707391 is a prime number
BaseRepresentation
bin110100010010…
…100001111111
3221210102000011
4310102201333
512002114031
61205444051
7224340145
oct64224177
927712004
1013707391
117812625
124710627
132abc1a9
141b6b595
15130b6b1
hexd1287f

13707391 has 2 divisors, whose sum is σ = 13707392. Its totient is φ = 13707390.

The previous prime is 13707359. The next prime is 13707403. The reversal of 13707391 is 19370731.

It is a strong prime.

It is an emirp because it is prime and its reverse (19370731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13707391 - 25 = 13707359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13707091) 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 as a sum of consecutive naturals, namely, 6853695 + 6853696.

It is an arithmetic number, because the mean of its divisors is an integer number (6853696).

Almost surely, 213707391 is an apocalyptic number.

13707391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13707391 is an equidigital number, since it uses as much as digits as its factorization.

13707391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 13707391 is about 3702.3493892392. The cubic root of 13707391 is about 239.3232730275.

The spelling of 13707391 in words is "thirteen million, seven hundred seven thousand, three hundred ninety-one".