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402425043 = 32331188137
BaseRepresentation
bin10111111111001…
…000010011010011
31001001020022101020
4113333020103103
51311010100133
6103533210523
712654361566
oct2777102323
91031208336
10402425043
11197181989
12b2930a43
13654b0337
143b6364dd
15254e20b3
hex17fc84d3

402425043 has 16 divisors (see below), whose sum is σ = 577959936. Its totient is φ = 248339520.

The previous prime is 402425041. The next prime is 402425047. The reversal of 402425043 is 340524204.

It is not a de Polignac number, because 402425043 - 21 = 402425041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402425041) 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 15 ways as a sum of consecutive naturals, for example, 91930 + ... + 96207.

It is an arithmetic number, because the mean of its divisors is an integer number (36122496).

Almost surely, 2402425043 is an apocalyptic number.

402425043 is a deficient number, since it is larger than the sum of its proper divisors (175534893).

402425043 is a wasteful number, since it uses less digits than its factorization.

402425043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188194.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 402425043 is about 20060.5344644653. The cubic root of 402425043 is about 738.2922899028.

Adding to 402425043 its reverse (340524204), we get a palindrome (742949247).

The spelling of 402425043 in words is "four hundred two million, four hundred twenty-five thousand, forty-three".

Divisors: 1 3 23 31 69 93 713 2139 188137 564411 4327151 5832247 12981453 17496741 134141681 402425043