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238828836 = 22331642013
BaseRepresentation
bin11100011110000…
…11110100100100
3121122101202120110
432033003310210
5442120010321
635410533020
75630003661
oct1617036444
9548352513
10238828836
111128a3704
1267b97170
133a630a4c
1423a0ca68
1515e79176
hexe3c3d24

238828836 has 24 divisors (see below), whose sum is σ = 575244544. Its totient is φ = 77041440.

The previous prime is 238828829. The next prime is 238828853. The reversal of 238828836 is 638828832.

238828836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2388288362 = 114078425810229792, which contains 22 as substring.

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, 320635 + ... + 321378.

Almost surely, 2238828836 is an apocalyptic number.

It is an amenable number.

238828836 is an abundant number, since it is smaller than the sum of its proper divisors (336415708).

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

238828836 is a wasteful number, since it uses less digits than its factorization.

238828836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642051 (or 642049 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 238828836 is about 15454.0880028554. The cubic root of 238828836 is about 620.4339972083.

The spelling of 238828836 in words is "two hundred thirty-eight million, eight hundred twenty-eight thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 642013 1284026 1926039 2568052 3852078 7704156 19902403 39804806 59707209 79609612 119414418 238828836