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38830020 = 22353717491
BaseRepresentation
bin1001010000011…
…1111111000100
32201001202202220
42110013333010
534420030040
63504132340
7651023025
oct224077704
981052686
1038830020
111aa11629
12110070b0
138077158
14522ac4c
1536202d0
hex2507fc4

38830020 has 48 divisors (see below), whose sum is σ = 111668928. Its totient is φ = 10074240.

The previous prime is 38830007. The next prime is 38830021. The reversal of 38830020 is 2003883.

38830020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38830021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6526 + ... + 10965.

It is an arithmetic number, because the mean of its divisors is an integer number (2326436).

Almost surely, 238830020 is an apocalyptic number.

38830020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38830020 is an abundant number, since it is smaller than the sum of its proper divisors (72838908).

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

38830020 is a wasteful number, since it uses less digits than its factorization.

38830020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17540 (or 17538 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 38830020 is about 6231.3738453089. The cubic root of 38830020 is about 338.6277446297.

The spelling of 38830020 in words is "thirty-eight million, eight hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 17491 34982 52473 69964 87455 104946 174910 209892 262365 349820 524730 647167 1049460 1294334 1941501 2588668 3235835 3883002 6471670 7766004 9707505 12943340 19415010 38830020