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212352031 = 2322214157
BaseRepresentation
bin11001010100000…
…11110000011111
3112210120121020001
430222003300133
5413330231111
633023235131
75155651063
oct1452036037
9483517201
10212352031
11a995a251
125b148aa7
1334cc05b8
14202b9aa3
15139991c1
hexca83c1f

212352031 has 8 divisors (see below), whose sum is σ = 221737824. Its totient is φ = 202979040.

The previous prime is 212351989. The next prime is 212352059. The reversal of 212352031 is 130253212.

212352031 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 212352031 - 211 = 212349983 is a prime.

It is a super-2 number, since 2×2123520312 = 90186770139649922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212352061) 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, 49005 + ... + 53161.

It is an arithmetic number, because the mean of its divisors is an integer number (27717228).

Almost surely, 2212352031 is an apocalyptic number.

212352031 is a deficient number, since it is larger than the sum of its proper divisors (9385793).

212352031 is a wasteful number, since it uses less digits than its factorization.

212352031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 212352031 is about 14572.3035584632. The cubic root of 212352031 is about 596.6030551635.

The spelling of 212352031 in words is "two hundred twelve million, three hundred fifty-two thousand, thirty-one".

Divisors: 1 23 2221 4157 51083 95611 9232697 212352031