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394760041 = 1330366157
BaseRepresentation
bin10111100001111…
…000111101101001
31000111210212222021
4113201320331221
51302024310131
6103101024441
712532255624
oct2741707551
91014725867
10394760041
11192917075
12b0255121
1363a28530
143a5dcdbb
15249cae11
hex17878f69

394760041 has 4 divisors (see below), whose sum is σ = 425126212. Its totient is φ = 364393872.

The previous prime is 394760029. The next prime is 394760053. The reversal of 394760041 is 140067493.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (394760029) and next prime (394760053).

It can be written as a sum of positive squares in 2 ways, for example, as 132158016 + 262602025 = 11496^2 + 16205^2 .

It is a cyclic number.

It is not a de Polignac number, because 394760041 - 215 = 394727273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394759979 and 394760006.

It is not an unprimeable number, because it can be changed into a prime (394760011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15183066 + ... + 15183091.

It is an arithmetic number, because the mean of its divisors is an integer number (106281553).

Almost surely, 2394760041 is an apocalyptic number.

It is an amenable number.

394760041 is a deficient number, since it is larger than the sum of its proper divisors (30366171).

394760041 is a wasteful number, since it uses less digits than its factorization.

394760041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30366170.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 394760041 is about 19868.5691734458. The cubic root of 394760041 is about 733.5747852080.

The spelling of 394760041 in words is "three hundred ninety-four million, seven hundred sixty thousand, forty-one".

Divisors: 1 13 30366157 394760041