Search a number
-
+
212263051 = 72111330293
BaseRepresentation
bin11001010011011…
…10000010001011
3112210102002011111
430221232002023
5413314404201
633021311151
75155130500
oct1451560213
9483362144
10212263051
11a98a9410
125b1054b7
1334c8bc50
14202954a7
151397cb51
hexca6e08b

212263051 has 24 divisors (see below), whose sum is σ = 290095344. Its totient is φ = 152671680.

The previous prime is 212263031. The next prime is 212263057. The reversal of 212263051 is 150362212.

It is not a de Polignac number, because 212263051 - 25 = 212263019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212263057) 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 23 ways as a sum of consecutive naturals, for example, 8140 + ... + 22153.

It is an arithmetic number, because the mean of its divisors is an integer number (12087306).

Almost surely, 2212263051 is an apocalyptic number.

212263051 is a deficient number, since it is larger than the sum of its proper divisors (77832293).

212263051 is a wasteful number, since it uses less digits than its factorization.

212263051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331 (or 30324 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 212263051 is about 14569.2501866088. The cubic root of 212263051 is about 596.5197137484.

The spelling of 212263051 in words is "two hundred twelve million, two hundred sixty-three thousand, fifty-one".

Divisors: 1 7 11 13 49 77 91 143 539 637 1001 7007 30293 212051 333223 393809 1484357 2332561 2756663 4331899 16327927 19296641 30323293 212263051