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42382830 = 2357201823
BaseRepresentation
bin1010000110101…
…1010111101110
32221202021022110
42201223113232
541322222310
64112224450
71023151050
oct241532756
987667273
1042382830
1121a18936
121223b126
138a1c2c9
1458b38d0
153ac2d20
hex286b5ee

42382830 has 32 divisors (see below), whose sum is σ = 116250624. Its totient is φ = 9687456.

The previous prime is 42382799. The next prime is 42382841. The reversal of 42382830 is 3828324.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100702 + ... + 101121.

It is an arithmetic number, because the mean of its divisors is an integer number (3632832).

Almost surely, 242382830 is an apocalyptic number.

42382830 is an abundant number, since it is smaller than the sum of its proper divisors (73867794).

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

42382830 is a wasteful number, since it uses less digits than its factorization.

42382830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201840.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 42382830 is about 6510.2096740428. The cubic root of 42382830 is about 348.6556045189.

The spelling of 42382830 in words is "forty-two million, three hundred eighty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 201823 403646 605469 1009115 1210938 1412761 2018230 2825522 3027345 4238283 6054690 7063805 8476566 14127610 21191415 42382830