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212526084 = 22317710507
BaseRepresentation
bin11001010101011…
…10010000000100
3112210220102222110
430222232100010
5413401313314
633031101020
75160304401
oct1452562004
9483812873
10212526084
11a9a68aa1
125b211770
13350518a4
14203232a8
15139d0a59
hexcaae404

212526084 has 12 divisors (see below), whose sum is σ = 495894224. Its totient is φ = 70842024.

The previous prime is 212526053. The next prime is 212526089. The reversal of 212526084 is 480625212.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (212526089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8855242 + ... + 8855265.

Almost surely, 2212526084 is an apocalyptic number.

It is an amenable number.

212526084 is an abundant number, since it is smaller than the sum of its proper divisors (283368140).

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

212526084 is a wasteful number, since it uses less digits than its factorization.

212526084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17710514 (or 17710512 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 212526084 is about 14578.2743834790. The cubic root of 212526084 is about 596.7660112907.

The spelling of 212526084 in words is "two hundred twelve million, five hundred twenty-six thousand, eighty-four".

Divisors: 1 2 3 4 6 12 17710507 35421014 53131521 70842028 106263042 212526084