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238402012 = 2269078629
BaseRepresentation
bin11100011010110…
…11100111011100
3121121121002002011
432031123213130
5442012331022
635353441004
75623245412
oct1615334734
9547532064
10238402012
11112631a62
1267a10164
133a5116a4
142393b2b2
1515de2977
hexe35b9dc

238402012 has 12 divisors (see below), whose sum is σ = 417312280. Its totient is φ = 119169936.

The previous prime is 238401973. The next prime is 238402027. The reversal of 238402012 is 210204832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23314 + ... + 31942.

Almost surely, 2238402012 is an apocalyptic number.

It is an amenable number.

238402012 is a deficient number, since it is larger than the sum of its proper divisors (178910268).

238402012 is a wasteful number, since it uses less digits than its factorization.

238402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15540 (or 15538 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 238402012 is about 15440.2724069234. The cubic root of 238402012 is about 620.0641730315.

Adding to 238402012 its reverse (210204832), we get a palindrome (448606844).

It can be divided in two parts, 23840 and 2012, that added together give a palindrome (25852).

The spelling of 238402012 in words is "two hundred thirty-eight million, four hundred two thousand, twelve".

Divisors: 1 2 4 6907 8629 13814 17258 27628 34516 59600503 119201006 238402012