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212374315 = 542474863
BaseRepresentation
bin11001010100010…
…01001100101011
3112210121201210101
430222021030223
5413331434230
633023530231
75156103046
oct1452111453
9483551711
10212374315
11a9974a6a
125b159977
1334cca79a
14202c3c5d
15139a0aca
hexca8932b

212374315 has 4 divisors (see below), whose sum is σ = 254849184. Its totient is φ = 169899448.

The previous prime is 212374313. The next prime is 212374333. The reversal of 212374315 is 513473212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212374315 - 21 = 212374313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212374313) 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 3 ways as a sum of consecutive naturals, for example, 21237427 + ... + 21237436.

It is an arithmetic number, because the mean of its divisors is an integer number (63712296).

Almost surely, 2212374315 is an apocalyptic number.

212374315 is a deficient number, since it is larger than the sum of its proper divisors (42474869).

212374315 is an equidigital number, since it uses as much as digits as its factorization.

212374315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42474868.

The product of its digits is 5040, while the sum is 28.

The square root of 212374315 is about 14573.0681395511. The cubic root of 212374315 is about 596.6239234004.

It can be divided in two parts, 21237 and 4315, that added together give a palindrome (25552).

The spelling of 212374315 in words is "two hundred twelve million, three hundred seventy-four thousand, three hundred fifteen".

Divisors: 1 5 42474863 212374315