Search a number
-
+
252412938 = 232101138841
BaseRepresentation
bin11110000101110…
…00010000001010
3122120221220110100
433002320100022
51004104203223
641014030230
76153321531
oct1702702012
9576856410
10252412938
1111a531638
1270648376
13403a8a8b
1425747318
151725e043
hexf0b840a

252412938 has 24 divisors (see below), whose sum is σ = 552313476. Its totient is φ = 83304000.

The previous prime is 252412931. The next prime is 252412973. The reversal of 252412938 is 839214252.

It is a happy number.

252412938 is a `hidden beast` number, since 2 + 524 + 129 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 251761689 + 651249 = 15867^2 + 807^2 .

It is not an unprimeable number, because it can be changed into a prime (252412931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67603 + ... + 71238.

Almost surely, 2252412938 is an apocalyptic number.

252412938 is an abundant number, since it is smaller than the sum of its proper divisors (299900538).

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

252412938 is a wasteful number, since it uses less digits than its factorization.

252412938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138950 (or 138947 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 252412938 is about 15887.5088670314. The cubic root of 252412938 is about 631.9807800730.

The spelling of 252412938 in words is "two hundred fifty-two million, four hundred twelve thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 18 101 202 303 606 909 1818 138841 277682 416523 833046 1249569 2499138 14022941 28045882 42068823 84137646 126206469 252412938