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212055054 = 23142724767
BaseRepresentation
bin11001010001110…
…11010000001110
3112210000111211220
430220323100032
5413241230204
633013024210
75153303211
oct1450732016
9483014756
10212055054
11a9777112
125b025066
1334c18383
142023d778
151393b1d9
hexca3b40e

212055054 has 16 divisors (see below), whose sum is σ = 424424448. Its totient is φ = 70632632.

The previous prime is 212055043. The next prime is 212055073. The reversal of 212055054 is 450550212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3822 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (26526528).

Almost surely, 2212055054 is an apocalyptic number.

212055054 is an abundant number, since it is smaller than the sum of its proper divisors (212369394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212055054 is a wasteful number, since it uses less digits than its factorization.

212055054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26199.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 212055054 is about 14562.1102179595. The cubic root of 212055054 is about 596.3248064400.

The spelling of 212055054 in words is "two hundred twelve million, fifty-five thousand, fifty-four".

Divisors: 1 2 3 6 1427 2854 4281 8562 24767 49534 74301 148602 35342509 70685018 106027527 212055054