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420324325 = 52157107089
BaseRepresentation
bin11001000011011…
…010001111100101
31002021220200120121
4121003122033211
51330100334300
6105413001541
713262461231
oct3103321745
91067820517
10420324325
111a6297983
12b89232b1
1369109525
143db755c1
1526d7a81a
hex190da3e5

420324325 has 12 divisors (see below), whose sum is σ = 524526820. Its totient is φ = 334114560.

The previous prime is 420324313. The next prime is 420324353. The reversal of 420324325 is 523423024.

It can be written as a sum of positive squares in 6 ways, for example, as 90611361 + 329712964 = 9519^2 + 18158^2 .

It is not a de Polignac number, because 420324325 - 25 = 420324293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 420324325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49620 + ... + 57469.

Almost surely, 2420324325 is an apocalyptic number.

It is an amenable number.

420324325 is a deficient number, since it is larger than the sum of its proper divisors (104202495).

420324325 is a wasteful number, since it uses less digits than its factorization.

420324325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107256 (or 107251 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 420324325 is about 20501.8127247324. The cubic root of 420324325 is about 749.0799532951.

Adding to 420324325 its reverse (523423024), we get a palindrome (943747349).

The spelling of 420324325 in words is "four hundred twenty million, three hundred twenty-four thousand, three hundred twenty-five".

Divisors: 1 5 25 157 785 3925 107089 535445 2677225 16812973 84064865 420324325