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428106430 = 2542810643
BaseRepresentation
bin11001100001000…
…110001010111110
31002211120001121201
4121201012022332
51334043401210
6110251450114
713415562463
oct3141061276
91084501551
10428106430
111aa722774
12bb45693a
136a90271b
1440bdd66a
15278b653a
hex198462be

428106430 has 8 divisors (see below), whose sum is σ = 770591592. Its totient is φ = 171242568.

The previous prime is 428106389. The next prime is 428106433. The reversal of 428106430 is 34601824.

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 (428106433) 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, 21405312 + ... + 21405331.

It is an arithmetic number, because the mean of its divisors is an integer number (96323949).

Almost surely, 2428106430 is an apocalyptic number.

428106430 is a deficient number, since it is larger than the sum of its proper divisors (342485162).

428106430 is a wasteful number, since it uses less digits than its factorization.

428106430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42810650.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 428106430 is about 20690.7329498015. The cubic root of 428106430 is about 753.6746656317.

The spelling of 428106430 in words is "four hundred twenty-eight million, one hundred six thousand, four hundred thirty".

Divisors: 1 2 5 10 42810643 85621286 214053215 428106430