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212350869 = 3313160037
BaseRepresentation
bin11001010100000…
…11011110010101
3112210120112122000
430222003132111
5413330211434
633023225513
75155644513
oct1452033625
9483515560
10212350869
11a9959395
125b148299
1334cbcc03
14202b94b3
1513998b99
hexca83795

212350869 has 16 divisors (see below), whose sum is σ = 317000640. Its totient is φ = 140484240.

The previous prime is 212350823. The next prime is 212350889. The reversal of 212350869 is 968053212.

212350869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212350869 - 212 = 212346773 is a prime.

It is a super-2 number, since 2×2123508692 = 90185783130110322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212350819) 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, 26482 + ... + 33555.

It is an arithmetic number, because the mean of its divisors is an integer number (19812540).

Almost surely, 2212350869 is an apocalyptic number.

It is an amenable number.

212350869 is a deficient number, since it is larger than the sum of its proper divisors (104649771).

212350869 is a wasteful number, since it uses less digits than its factorization.

212350869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60177 (or 60171 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 212350869 is about 14572.2636882538. The cubic root of 212350869 is about 596.6019669484.

The spelling of 212350869 in words is "two hundred twelve million, three hundred fifty thousand, eight hundred sixty-nine".

Divisors: 1 3 9 27 131 393 1179 3537 60037 180111 540333 1620999 7864847 23594541 70783623 212350869