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4156941 = 31385647
BaseRepresentation
bin1111110110111000001101
321211012020210
433312320031
52031010231
6225033033
750222235
oct17667015
97735223
104156941
11238a198
121485779
13b27139
147a2cc5
15571a46
hex3f6e0d

4156941 has 4 divisors (see below), whose sum is σ = 5542592. Its totient is φ = 2771292.

The previous prime is 4156937. The next prime is 4156969. The reversal of 4156941 is 1496514.

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 not a de Polignac number, because 4156941 - 22 = 4156937 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

4156941 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4156899 and 4156908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156921) 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, 692821 + ... + 692826.

It is an arithmetic number, because the mean of its divisors is an integer number (1385648).

Almost surely, 24156941 is an apocalyptic number.

It is an amenable number.

4156941 is a deficient number, since it is larger than the sum of its proper divisors (1385651).

4156941 is a wasteful number, since it uses less digits than its factorization.

4156941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385650.

The product of its digits is 4320, while the sum is 30.

The square root of 4156941 is about 2038.8577684576. The cubic root of 4156941 is about 160.7895995229.

The spelling of 4156941 in words is "four million, one hundred fifty-six thousand, nine hundred forty-one".

Divisors: 1 3 1385647 4156941