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20020212132 = 2231668351011
BaseRepresentation
bin10010101001010011…
…000011000110100100
31220200020120011002020
4102221103003012210
5312000133242012
613110330343140
71306055665254
oct225123030644
956606504066
1020020212132
118543984768
123a6888aab0
131b7093378b
14d7cc67964
157c290ea8c
hex4a94c31a4

20020212132 has 12 divisors (see below), whose sum is σ = 46713828336. Its totient is φ = 6673404040.

The previous prime is 20020212097. The next prime is 20020212169. The reversal of 20020212132 is 23121202002.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834175494 + ... + 834175517.

It is an arithmetic number, because the mean of its divisors is an integer number (3892819028).

Almost surely, 220020212132 is an apocalyptic number.

It is an amenable number.

20020212132 is an abundant number, since it is smaller than the sum of its proper divisors (26693616204).

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

20020212132 is a wasteful number, since it uses less digits than its factorization.

20020212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668351018 (or 1668351016 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20020212132 its reverse (23121202002), we get a palindrome (43141414134).

The spelling of 20020212132 in words is "twenty billion, twenty million, two hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 1668351011 3336702022 5005053033 6673404044 10010106066 20020212132