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389083842 = 23275215927
BaseRepresentation
bin10111001100001…
…111001011000010
31000010010111200200
4113030033023002
51244101140332
6102335230030
712433105140
oct2714171302
91003114620
10389083842
1118a69a4a4
12aa378316
13627bba34
1439962590
152425917c
hex1730f2c2

389083842 has 48 divisors (see below), whose sum is σ = 965457792. Its totient is φ = 110934720.

The previous prime is 389083787. The next prime is 389083853. The reversal of 389083842 is 248380983.

It is a super-2 number, since 2×3890838422 = 302772472210961928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62683 + ... + 68609.

It is an arithmetic number, because the mean of its divisors is an integer number (20113704).

Almost surely, 2389083842 is an apocalyptic number.

389083842 is an abundant number, since it is smaller than the sum of its proper divisors (576373950).

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

389083842 is a wasteful number, since it uses less digits than its factorization.

389083842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463 (or 6460 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 389083842 is about 19725.2082878737. The cubic root of 389083842 is about 730.0418078264.

The spelling of 389083842 in words is "three hundred eighty-nine million, eighty-three thousand, eight hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 521 1042 1563 3126 3647 4689 5927 7294 9378 10941 11854 17781 21882 32823 35562 41489 53343 65646 82978 106686 124467 248934 373401 746802 3087967 6175934 9263901 18527802 21615769 27791703 43231538 55583406 64847307 129694614 194541921 389083842