Search a number
-
+
212371425 = 32527134839
BaseRepresentation
bin11001010100010…
…00011111100001
3112210121120211100
430222020133201
5413331341200
633023505013
75156061450
oct1452103741
9483546740
10212371425
11a9972882
125b158169
1334cc9386
14202c2b97
151399ed00
hexca887e1

212371425 has 36 divisors (see below), whose sum is σ = 434724160. Its totient is φ = 97083360.

The previous prime is 212371391. The next prime is 212371433. The reversal of 212371425 is 524173212.

212371425 is a `hidden beast` number, since 2 + 1 + 237 + 1 + 425 = 666.

It is not a de Polignac number, because 212371425 - 215 = 212338657 is a prime.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 65845 + ... + 68994.

Almost surely, 2212371425 is an apocalyptic number.

212371425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212371425 is an abundant number, since it is smaller than the sum of its proper divisors (222352735).

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

212371425 is a wasteful number, since it uses less digits than its factorization.

212371425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134862 (or 134854 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 212371425 is about 14572.9689837040. The cubic root of 212371425 is about 596.6212170923.

The spelling of 212371425 in words is "two hundred twelve million, three hundred seventy-one thousand, four hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 105 175 225 315 525 1575 134839 404517 674195 943873 1213551 2022585 2831619 3370975 4719365 6067755 8494857 10112925 14158095 23596825 30338775 42474285 70790475 212371425