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13976943 = 39974673
BaseRepresentation
bin110101010100…
…010101101111
3222022002202120
4311110111233
512034230233
61215324023
7226542051
oct65242557
928262676
1013976943
1179870a2
124820613
132b84aa6
141bdb8d1
1513614b3
hexd5456f

13976943 has 8 divisors (see below), whose sum is σ = 18658608. Its totient is φ = 9306624.

The previous prime is 13976933. The next prime is 13976957. The reversal of 13976943 is 34967931.

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

It is not a de Polignac number, because 13976943 - 214 = 13960559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13976895 and 13976904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13976903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (2332326).

Almost surely, 213976943 is an apocalyptic number.

13976943 is a deficient number, since it is larger than the sum of its proper divisors (4681665).

13976943 is an equidigital number, since it uses as much as digits as its factorization.

13976943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its digits is 122472, while the sum is 42.

The square root of 13976943 is about 3738.5749959042. The cubic root of 13976943 is about 240.8818426435.

The spelling of 13976943 in words is "thirteen million, nine hundred seventy-six thousand, nine hundred forty-three".

Divisors: 1 3 997 2991 4673 14019 4658981 13976943