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428310030 = 23514277001
BaseRepresentation
bin11001100001110…
…111111000001110
31002211221101220110
4121201313320032
51334121410110
6110300100450
713420401201
oct3141677016
91084841813
10428310030
111aa851735
12bb534726
136a9742b5
1440c53938
1527906a20
hex19877e0e

428310030 has 16 divisors (see below), whose sum is σ = 1027944144. Its totient is φ = 114216000.

The previous prime is 428310023. The next prime is 428310031. The reversal of 428310030 is 30013824.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 428309979 and 428310006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428310031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7138471 + ... + 7138530.

It is an arithmetic number, because the mean of its divisors is an integer number (64246509).

Almost surely, 2428310030 is an apocalyptic number.

428310030 is an abundant number, since it is smaller than the sum of its proper divisors (599634114).

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

428310030 is a wasteful number, since it uses less digits than its factorization.

428310030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14277011.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 428310030 is about 20695.6524419985. The cubic root of 428310030 is about 753.7941248999.

Adding to 428310030 its reverse (30013824), we get a palindrome (458323854).

The spelling of 428310030 in words is "four hundred twenty-eight million, three hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 14277001 28554002 42831003 71385005 85662006 142770010 214155015 428310030