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404572031 = 1636134049
BaseRepresentation
bin11000000111010…
…100011101111111
31001012021101111022
4120013110131333
51312032301111
6104051214355
713011543203
oct3007243577
91035241438
10404572031
11198408a56
12b35a73bb
1365a82646
143ba34b03
15257b82db
hex181d477f

404572031 has 8 divisors (see below), whose sum is σ = 407818800. Its totient is φ = 401334912.

The previous prime is 404572019. The next prime is 404572039. The reversal of 404572031 is 130275404.

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 404572031 - 210 = 404571007 is a prime.

It is a super-2 number, since 2×4045720312 = 327357056534929922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404572039) 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 7 ways as a sum of consecutive naturals, for example, 97895 + ... + 101943.

It is an arithmetic number, because the mean of its divisors is an integer number (50977350).

Almost surely, 2404572031 is an apocalyptic number.

404572031 is a deficient number, since it is larger than the sum of its proper divisors (3246769).

404572031 is a wasteful number, since it uses less digits than its factorization.

404572031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 404572031 is about 20113.9760117188. The cubic root of 404572031 is about 739.6029224701.

The spelling of 404572031 in words is "four hundred four million, five hundred seventy-two thousand, thirty-one".

Divisors: 1 163 613 4049 99919 659987 2482037 404572031