Search a number
-
+
225711258 = 231271392131
BaseRepresentation
bin11010111010000…
…01010010011010
3120201201022122020
431131001102122
5430240230013
634221435310
75410341213
oct1535012232
9521638566
10225711258
11106454233
126370bb36
13379ba176
1421d9640a
1514c37623
hexd74149a

225711258 has 32 divisors (see below), whose sum is σ = 458465280. Its totient is φ = 74072880.

The previous prime is 225711251. The next prime is 225711281. The reversal of 225711258 is 852117522.

It is not an unprimeable number, because it can be changed into a prime (225711251) 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 15 ways as a sum of consecutive naturals, for example, 104853 + ... + 106983.

It is an arithmetic number, because the mean of its divisors is an integer number (14327040).

Almost surely, 2225711258 is an apocalyptic number.

225711258 is an abundant number, since it is smaller than the sum of its proper divisors (232754022).

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

225711258 is a wasteful number, since it uses less digits than its factorization.

225711258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402.

The product of its digits is 11200, while the sum is 33.

The square root of 225711258 is about 15023.6898929657. The cubic root of 225711258 is about 608.8604165094.

The spelling of 225711258 in words is "two hundred twenty-five million, seven hundred eleven thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 127 139 254 278 381 417 762 834 2131 4262 6393 12786 17653 35306 52959 105918 270637 296209 541274 592418 811911 888627 1623822 1777254 37618543 75237086 112855629 225711258