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238235445 = 3357252101
BaseRepresentation
bin11100011001100…
…10111100110101
3121121021121121000
432030302330311
5441442013240
635350113513
75621652660
oct1614627465
9547247530
10238235445
111125288a8
126794b899
133a483926
14238d66d7
1515dad430
hexe332f35

238235445 has 32 divisors (see below), whose sum is σ = 484035840. Its totient is φ = 108907200.

The previous prime is 238235443. The next prime is 238235447. The reversal of 238235445 is 544532832.

It is an interprime number because it is at equal distance from previous prime (238235443) and next prime (238235447).

It is not a de Polignac number, because 238235445 - 21 = 238235443 is a prime.

It is a super-2 number, since 2×2382354452 = 113512254508696050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238235443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125106 + ... + 126995.

It is an arithmetic number, because the mean of its divisors is an integer number (15126120).

Almost surely, 2238235445 is an apocalyptic number.

It is an amenable number.

238235445 is an abundant number, since it is smaller than the sum of its proper divisors (245800395).

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

238235445 is a wasteful number, since it uses less digits than its factorization.

238235445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252122 (or 252116 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 238235445 is about 15434.8775505347. The cubic root of 238235445 is about 619.9197303296.

The spelling of 238235445 in words is "two hundred thirty-eight million, two hundred thirty-five thousand, four hundred forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 252101 756303 1260505 1764707 2268909 3781515 5294121 6806727 8823535 11344545 15882363 26470605 34033635 47647089 79411815 238235445