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428037974 = 27132351857
BaseRepresentation
bin11001100000110…
…101011101010110
31002211102120201022
4121200311131112
51334034203344
6110250201142
713415156060
oct3140653526
91084376638
10428037974
111aa6862a1
12bb4231b2
136a8aa510
1440bc2730
15278a10ee
hex19835756

428037974 has 16 divisors (see below), whose sum is σ = 790224288. Its totient is φ = 169333632.

The previous prime is 428037949. The next prime is 428037983. The reversal of 428037974 is 479730824.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175747 + ... + 1176110.

It is an arithmetic number, because the mean of its divisors is an integer number (49389018).

Almost surely, 2428037974 is an apocalyptic number.

428037974 is a deficient number, since it is larger than the sum of its proper divisors (362186314).

428037974 is a wasteful number, since it uses less digits than its factorization.

428037974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351879.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 428037974 is about 20689.0786165068. The cubic root of 428037974 is about 753.6344915850.

The spelling of 428037974 in words is "four hundred twenty-eight million, thirty-seven thousand, nine hundred seventy-four".

Divisors: 1 2 7 13 14 26 91 182 2351857 4703714 16462999 30574141 32925998 61148282 214018987 428037974