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13938941 = 118711743
BaseRepresentation
bin110101001011…
…000011111101
3222020011122002
4311023003331
512032021231
61214432045
7226323212
oct65130375
928204562
1013938941
117960595
124802625
132b706c3
141bcbb09
1513550cb
hexd4b0fd

13938941 has 4 divisors (see below), whose sum is σ = 13951872. Its totient is φ = 13926012.

The previous prime is 13938919. The next prime is 13938949. The reversal of 13938941 is 14983931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13938941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13938895 and 13938904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4685 + ... + 7058.

It is an arithmetic number, because the mean of its divisors is an integer number (3487968).

Almost surely, 213938941 is an apocalyptic number.

It is an amenable number.

13938941 is a deficient number, since it is larger than the sum of its proper divisors (12931).

13938941 is a wasteful number, since it uses less digits than its factorization.

13938941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12930.

The product of its digits is 23328, while the sum is 38.

The square root of 13938941 is about 3733.4891187735. The cubic root of 13938941 is about 240.6633327585.

The spelling of 13938941 in words is "thirteen million, nine hundred thirty-eight thousand, nine hundred forty-one".

Divisors: 1 1187 11743 13938941