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212331295 = 5116176257
BaseRepresentation
bin11001010011111…
…10101100011111
3112210112112210001
430221332230133
5413324100140
633022555131
75155533451
oct1451765437
9483475701
10212331295
11a9945710
125b138aa7
1334cb4027
14202b22d1
1513992e9a
hexca7eb1f

212331295 has 16 divisors (see below), whose sum is σ = 278455968. Its totient is φ = 154147840.

The previous prime is 212331293. The next prime is 212331313. The reversal of 212331295 is 592133212.

It is not a de Polignac number, because 212331295 - 21 = 212331293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212331293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30807 + ... + 37063.

It is an arithmetic number, because the mean of its divisors is an integer number (17403498).

Almost surely, 2212331295 is an apocalyptic number.

212331295 is a deficient number, since it is larger than the sum of its proper divisors (66124673).

212331295 is a wasteful number, since it uses less digits than its factorization.

212331295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890.

The product of its digits is 3240, while the sum is 28.

The square root of 212331295 is about 14571.5920544050. The cubic root of 212331295 is about 596.5836352666.

The spelling of 212331295 in words is "two hundred twelve million, three hundred thirty-one thousand, two hundred ninety-five".

Divisors: 1 5 11 55 617 3085 6257 6787 31285 33935 68827 344135 3860569 19302845 42466259 212331295