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13914397 = 74742293
BaseRepresentation
bin110101000101…
…000100011101
3222011220222001
4311011010131
512030230042
61214122301
7226161520
oct65050435
928156861
1013914397
117944102
1247b0391
132b62493
141bc2bb7
15134cbb7
hexd4511d

13914397 has 8 divisors (see below), whose sum is σ = 16240896. Its totient is φ = 11672592.

The previous prime is 13914391. The next prime is 13914401. The reversal of 13914397 is 79341931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13914397 - 23 = 13914389 is a prime.

It is a super-2 number, since 2×139143972 = 387220887747218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13914391) by changing a digit.

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, 20818 + ... + 21475.

It is an arithmetic number, because the mean of its divisors is an integer number (2030112).

Almost surely, 213914397 is an apocalyptic number.

It is an amenable number.

13914397 is a deficient number, since it is larger than the sum of its proper divisors (2326499).

13914397 is an equidigital number, since it uses as much as digits as its factorization.

13914397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42347.

The product of its digits is 20412, while the sum is 37.

The square root of 13914397 is about 3730.2006648436. The cubic root of 13914397 is about 240.5219946373.

The spelling of 13914397 in words is "thirteen million, nine hundred fourteen thousand, three hundred ninety-seven".

Divisors: 1 7 47 329 42293 296051 1987771 13914397