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212100002 = 21947118757
BaseRepresentation
bin11001010010001…
…10001110100010
3112210002210111122
430221012032202
5413244200002
633014012242
75153551232
oct1451061642
9483083448
10212100002
11a97a7964
125b047082
1334c3297a
1420251cc2
15139496a2
hexca463a2

212100002 has 16 divisors (see below), whose sum is σ = 342023040. Its totient is φ = 98329968.

The previous prime is 212099981. The next prime is 212100017. The reversal of 212100002 is 200001212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57593 + ... + 61164.

It is an arithmetic number, because the mean of its divisors is an integer number (21376440).

Almost surely, 2212100002 is an apocalyptic number.

212100002 is a deficient number, since it is larger than the sum of its proper divisors (129923038).

212100002 is a wasteful number, since it uses less digits than its factorization.

212100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118825.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 212100002 is about 14563.6534564648. The cubic root of 212100002 is about 596.3669365587.

Adding to 212100002 its reverse (200001212), we get a palindrome (412101214).

The spelling of 212100002 in words is "two hundred twelve million, one hundred thousand, two".

Divisors: 1 2 19 38 47 94 893 1786 118757 237514 2256383 4512766 5581579 11163158 106050001 212100002