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238290275 = 5217560683
BaseRepresentation
bin11100011010000…
…00010101100011
3121121101101210202
432031000111203
5442000242100
635351215415
75622301556
oct1615002543
9547341722
10238290275
11112566013
126797756b
133a4a2882
142390c69d
1515dbe7d5
hexe340563

238290275 has 12 divisors (see below), whose sum is σ = 312861672. Its totient is φ = 179418240.

The previous prime is 238290259. The next prime is 238290293. The reversal of 238290275 is 572092832.

It is not a de Polignac number, because 238290275 - 24 = 238290259 is a prime.

It is a super-3 number, since 3×2382902753 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279917 + ... + 280766.

It is an arithmetic number, because the mean of its divisors is an integer number (26071806).

Almost surely, 2238290275 is an apocalyptic number.

238290275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238290275 is a deficient number, since it is larger than the sum of its proper divisors (74571397).

238290275 is a wasteful number, since it uses less digits than its factorization.

238290275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560710 (or 560705 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 238290275 is about 15436.6536205228. The cubic root of 238290275 is about 619.9672849543.

The spelling of 238290275 in words is "two hundred thirty-eight million, two hundred ninety thousand, two hundred seventy-five".

Divisors: 1 5 17 25 85 425 560683 2803415 9531611 14017075 47658055 238290275