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428996894 = 21012123747
BaseRepresentation
bin11001100100011…
…111100100011110
31002220020022002212
4121210133210132
51334310400034
6110322520422
713426261544
oct3144374436
91086208085
10428996894
11200180797
12bb806112
136ab54b21
1440d91d94
15279e02ce
hex1991f91e

428996894 has 8 divisors (see below), whose sum is σ = 649866888. Its totient is φ = 212374600.

The previous prime is 428996891. The next prime is 428996903. The reversal of 428996894 is 498699824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428996891) 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, 1061672 + ... + 1062075.

It is an arithmetic number, because the mean of its divisors is an integer number (81233361).

Almost surely, 2428996894 is an apocalyptic number.

428996894 is a deficient number, since it is larger than the sum of its proper divisors (220869994).

428996894 is a wasteful number, since it uses less digits than its factorization.

428996894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123850.

The product of its digits is 8957952, while the sum is 59.

The square root of 428996894 is about 20712.2401975257. The cubic root of 428996894 is about 754.1968530568.

The spelling of 428996894 in words is "four hundred twenty-eight million, nine hundred ninety-six thousand, eight hundred ninety-four".

Divisors: 1 2 101 202 2123747 4247494 214498447 428996894