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212055141 = 3571112377
BaseRepresentation
bin11001010001110…
…11010001100101
3112210000111222010
430220323101211
5413241231031
633013024433
75153303364
oct1450732145
9483014863
10212055141
11a9777191
125b025119
1334c1841c
142023d7db
151393b246
hexca3b465

212055141 has 8 divisors (see below), whose sum is σ = 282812544. Its totient is φ = 141333920.

The previous prime is 212055139. The next prime is 212055149. The reversal of 212055141 is 141550212.

212055141 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 212055141 - 21 = 212055139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212055149) 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, 10945 + ... + 23321.

It is an arithmetic number, because the mean of its divisors is an integer number (35351568).

Almost surely, 2212055141 is an apocalyptic number.

It is an amenable number.

212055141 is a deficient number, since it is larger than the sum of its proper divisors (70757403).

212055141 is a wasteful number, since it uses less digits than its factorization.

212055141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18091.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 212055141 is about 14562.1132051636. The cubic root of 212055141 is about 596.3248879915.

The spelling of 212055141 in words is "two hundred twelve million, fifty-five thousand, one hundred forty-one".

Divisors: 1 3 5711 12377 17133 37131 70685047 212055141