Search a number
-
+
252212415 = 35713434297
BaseRepresentation
bin11110000100001…
…11010010111111
3122120120201101120
433002013102333
51004031244130
641005442023
76151525110
oct1702072277
9576521346
10252212415
1111a404a14
1270570313
1340338720
14256d4207
151721e910
hexf0874bf

252212415 has 64 divisors (see below), whose sum is σ = 508333056. Its totient is φ = 103928832.

The previous prime is 252212381. The next prime is 252212417. The reversal of 252212415 is 514212252.

It is not a de Polignac number, because 252212415 - 26 = 252212351 is a prime.

It is a super-2 number, since 2×2522124152 = 127222204560264450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252212417) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56547 + ... + 60843.

It is an arithmetic number, because the mean of its divisors is an integer number (7942704).

Almost surely, 2252212415 is an apocalyptic number.

252212415 is an abundant number, since it is smaller than the sum of its proper divisors (256120641).

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

252212415 is a wasteful number, since it uses less digits than its factorization.

252212415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368.

The product of its digits is 1600, while the sum is 24.

The square root of 252212415 is about 15881.1969007377. The cubic root of 252212415 is about 631.8133820835.

Adding to 252212415 its reverse (514212252), we get a palindrome (766424667).

The spelling of 252212415 in words is "two hundred fifty-two million, two hundred twelve thousand, four hundred fifteen".

Divisors: 1 3 5 7 13 15 21 35 39 43 65 91 105 129 195 215 273 301 455 559 645 903 1365 1505 1677 2795 3913 4297 4515 8385 11739 12891 19565 21485 30079 55861 58695 64455 90237 150395 167583 184771 279305 391027 451185 554313 837915 923855 1173081 1293397 1955135 2402023 2771565 3880191 5865405 6466985 7206069 12010115 16814161 19400955 36030345 50442483 84070805 252212415