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252111412 = 22715159629
BaseRepresentation
bin11110000011011…
…10101000110100
3122120101120211201
433001232220310
51004020031122
641003342244
76150624460
oct1701565064
9576346751
10252111412
1111a346043
1270521984
1340301767
14256a94a0
15171eea27
hexf06ea34

252111412 has 24 divisors (see below), whose sum is σ = 507570560. Its totient is φ = 107330400.

The previous prime is 252111401. The next prime is 252111449. The reversal of 252111412 is 214111252.

252111412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252111412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25587 + ... + 34042.

Almost surely, 2252111412 is an apocalyptic number.

It is an amenable number.

252111412 is an abundant number, since it is smaller than the sum of its proper divisors (255459148).

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

252111412 is a wasteful number, since it uses less digits than its factorization.

252111412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59791 (or 59789 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 252111412 is about 15878.0166267705. The cubic root of 252111412 is about 631.7290304764.

Subtracting from 252111412 its product of digits (160), we obtain a palindrome (252111252).

Adding to 252111412 its reverse (214111252), we get a palindrome (466222664).

The spelling of 252111412 in words is "two hundred fifty-two million, one hundred eleven thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 4228 59629 119258 238516 417403 834806 1669612 9003979 18007958 36015916 63027853 126055706 252111412