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420374568 = 23317515607
BaseRepresentation
bin11001000011100…
…110100000101000
31002022000020111110
4121003212200220
51330103441233
6105414030320
713263060555
oct3103464050
91068006443
10420374568
111a63216a9
12b89483a0
1369126363
143db89a2c
1526d8a663
hex190e6828

420374568 has 16 divisors (see below), whose sum is σ = 1050936480. Its totient is φ = 140124848.

The previous prime is 420374543. The next prime is 420374569. The reversal of 420374568 is 865473024.

It is a happy number.

It is a super-3 number, since 3×4203745683 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (420374569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8757780 + ... + 8757827.

It is an arithmetic number, because the mean of its divisors is an integer number (65683530).

Almost surely, 2420374568 is an apocalyptic number.

It is an amenable number.

420374568 is an abundant number, since it is smaller than the sum of its proper divisors (630561912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420374568 is a wasteful number, since it uses less digits than its factorization.

420374568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17515616 (or 17515612 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 420374568 is about 20503.0380187913. The cubic root of 420374568 is about 749.1097989185.

The spelling of 420374568 in words is "four hundred twenty million, three hundred seventy-four thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 17515607 35031214 52546821 70062428 105093642 140124856 210187284 420374568