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38403232830 = 23251025941593
BaseRepresentation
bin100011110001000000…
…101101010000111110
310200010101110100201200
4203301000231100332
51112122211422310
625350414320330
72526445043634
oct436100552076
9120111410650
1038403232830
1115317695256
1275391b90a6
13381030c111
141c044b9354
15eeb7259c0
hex8f102d43e

38403232830 has 48 divisors (see below), whose sum is σ = 99860538960. Its totient is φ = 10239617664.

The previous prime is 38403232823. The next prime is 38403232831. The reversal of 38403232830 is 3823230483.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38403232831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 902514 + ... + 944106.

It is an arithmetic number, because the mean of its divisors is an integer number (2080427895).

Almost surely, 238403232830 is an apocalyptic number.

38403232830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38403232830 is an abundant number, since it is smaller than the sum of its proper divisors (61457306130).

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

38403232830 is a wasteful number, since it uses less digits than its factorization.

38403232830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51865 (or 51862 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 38403232830 in words is "thirty-eight billion, four hundred three million, two hundred thirty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 10259 20518 30777 41593 51295 61554 83186 92331 102590 124779 153885 184662 207965 249558 307770 374337 415930 461655 623895 748674 923310 1247790 1871685 3743370 426702587 853405174 1280107761 2133512935 2560215522 3840323283 4267025870 6400538805 7680646566 12801077610 19201616415 38403232830