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428624830 = 2542862483
BaseRepresentation
bin11001100011000…
…100101110111110
31002212112101201201
4121203010232332
51334211443310
6110310530114
713423152034
oct3143045676
91085471651
10428624830
111aaa471a7
12bb66693a
136aa5467a
1440cd6554
1527969e3a
hex198c4bbe

428624830 has 8 divisors (see below), whose sum is σ = 771524712. Its totient is φ = 171449928.

The previous prime is 428624827. The next prime is 428624837. The reversal of 428624830 is 38426824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 428624830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428624837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21431232 + ... + 21431251.

It is an arithmetic number, because the mean of its divisors is an integer number (96440589).

Almost surely, 2428624830 is an apocalyptic number.

428624830 is a deficient number, since it is larger than the sum of its proper divisors (342899882).

428624830 is a wasteful number, since it uses less digits than its factorization.

428624830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42862490.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 428624830 is about 20703.2565071295. The cubic root of 428624830 is about 753.9787546167.

The spelling of 428624830 in words is "four hundred twenty-eight million, six hundred twenty-four thousand, eight hundred thirty".

Divisors: 1 2 5 10 42862483 85724966 214312415 428624830