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13948697 = 79720543
BaseRepresentation
bin110101001101…
…011100011001
3222020200000102
4311031130121
512032324242
61214545145
7226363520
oct65153431
928220012
1013948697
117967954
1248081b5
132b74c89
141bd14b7
151357e32
hexd4d719

13948697 has 8 divisors (see below), whose sum is σ = 16106496. Its totient is φ = 11832192.

The previous prime is 13948691. The next prime is 13948709. The reversal of 13948697 is 79684931.

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 13948697 - 26 = 13948633 is a prime.

It is a super-2 number, since 2×139486972 = 389132295995618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13948691) 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 7 ways as a sum of consecutive naturals, for example, 9593 + ... + 10950.

It is an arithmetic number, because the mean of its divisors is an integer number (2013312).

Almost surely, 213948697 is an apocalyptic number.

It is an amenable number.

13948697 is a deficient number, since it is larger than the sum of its proper divisors (2157799).

13948697 is an equidigital number, since it uses as much as digits as its factorization.

13948697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647.

The product of its digits is 326592, while the sum is 47.

The square root of 13948697 is about 3734.7954428590. The cubic root of 13948697 is about 240.7194671978.

It can be divided in two parts, 13 and 948697, that multiplied together give a triangular number (12333061 = T4966).

The spelling of 13948697 in words is "thirteen million, nine hundred forty-eight thousand, six hundred ninety-seven".

Divisors: 1 7 97 679 20543 143801 1992671 13948697