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238885012 = 22160937117
BaseRepresentation
bin11100011110100…
…01100010010100
3121122111121122001
432033101202110
5442123310022
635412045044
75630326522
oct1617214224
9548447561
10238885012
11112931933
1268003784
133a6504a2
1423a25312
1515e8ab27
hexe3d1894

238885012 has 12 divisors (see below), whose sum is σ = 418319860. Its totient is φ = 119365056.

The previous prime is 238885007. The next prime is 238885013. The reversal of 238885012 is 210588832.

It can be written as a sum of positive squares in 2 ways, for example, as 198359056 + 40525956 = 14084^2 + 6366^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238885013) 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 3 ways as a sum of consecutive naturals, for example, 12123 + ... + 24994.

Almost surely, 2238885012 is an apocalyptic number.

It is an amenable number.

238885012 is a deficient number, since it is larger than the sum of its proper divisors (179434848).

238885012 is a wasteful number, since it uses less digits than its factorization.

238885012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38730 (or 38728 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 238885012 is about 15455.9054086132. The cubic root of 238885012 is about 620.4826384144.

It can be divided in two parts, 23888 and 5012, that added together give a square (28900 = 1702).

The spelling of 238885012 in words is "two hundred thirty-eight million, eight hundred eighty-five thousand, twelve".

Divisors: 1 2 4 1609 3218 6436 37117 74234 148468 59721253 119442506 238885012