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212374331 = 1335346279
BaseRepresentation
bin11001010100010…
…01001100111011
3112210121201210222
430222021030323
5413331434311
633023530255
75156103101
oct1452111473
9483551728
10212374331
11a9974a84
125b15998b
1334cca7b0
14202c3c71
15139a0adb
hexca8933b

212374331 has 8 divisors (see below), whose sum is σ = 229363680. Its totient is φ = 195478272.

The previous prime is 212374313. The next prime is 212374333. The reversal of 212374331 is 133473212.

212374331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212374331 - 226 = 145265467 is a prime.

It is a super-2 number, since 2×2123743312 = 90205712935395122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212374331.

It is not an unprimeable number, because it can be changed into a prime (212374333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18551 + ... + 27728.

It is an arithmetic number, because the mean of its divisors is an integer number (28670460).

Almost surely, 2212374331 is an apocalyptic number.

212374331 is a deficient number, since it is larger than the sum of its proper divisors (16989349).

212374331 is a wasteful number, since it uses less digits than its factorization.

212374331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46645.

The product of its digits is 3024, while the sum is 26.

The square root of 212374331 is about 14573.0686885090. The cubic root of 212374331 is about 596.6239383833.

The spelling of 212374331 in words is "two hundred twelve million, three hundred seventy-four thousand, three hundred thirty-one".

Divisors: 1 13 353 4589 46279 601627 16336487 212374331