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430020380 = 225131916301
BaseRepresentation
bin11001101000011…
…001011100011100
31002222011022001202
4121220121130130
51340041123010
6110400455032
713441053506
oct3150313434
91088138052
10430020380
1120080a749
1210001a478
136b12293a
144117ad76
1527b436a5
hex19a1971c

430020380 has 24 divisors (see below), whose sum is σ = 903782880. Its totient is φ = 171867200.

The previous prime is 430020377. The next prime is 430020403. The reversal of 430020380 is 83020034.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 18230 + ... + 34530.

It is an arithmetic number, because the mean of its divisors is an integer number (37657620).

Almost surely, 2430020380 is an apocalyptic number.

It is an amenable number.

430020380 is an abundant number, since it is smaller than the sum of its proper divisors (473762500).

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

430020380 is a wasteful number, since it uses less digits than its factorization.

430020380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17629 (or 17627 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 430020380 is about 20736.9327529411. The cubic root of 430020380 is about 754.7961556610.

The spelling of 430020380 in words is "four hundred thirty million, twenty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1319 2638 5276 6595 13190 16301 26380 32602 65204 81505 163010 326020 21501019 43002038 86004076 107505095 215010190 430020380