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20341212132 = 22329229725447
BaseRepresentation
bin10010111100011011…
…100100001111100100
31221111121120122022010
4102330123210033210
5313124322242012
613202234434220
71320034310313
oct227433441744
957447518263
1020341212132
1186990a181a
123b38292970
131bc22a4bc7
14dad74627a
157e0bbac3c
hex4bc6e43e4

20341212132 has 48 divisors (see below), whose sum is σ = 49122783360. Its totient is φ = 6543489792.

The previous prime is 20341212083. The next prime is 20341212187. The reversal of 20341212132 is 23121214302.

It is a junction number, because it is equal to n+sod(n) for n = 20341212099 and 20341212108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786633 + ... + 812079.

It is an arithmetic number, because the mean of its divisors is an integer number (1023391320).

Almost surely, 220341212132 is an apocalyptic number.

It is an amenable number.

20341212132 is an abundant number, since it is smaller than the sum of its proper divisors (28781571228).

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

20341212132 is a wasteful number, since it uses less digits than its factorization.

20341212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780 (or 27778 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20341212132 its reverse (23121214302), we get a palindrome (43462426434).

The spelling of 20341212132 in words is "twenty billion, three hundred forty-one million, two hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 2297 4594 6891 9188 13782 25447 27564 50894 66613 76341 101788 133226 152682 199839 266452 305364 399678 737963 799356 1475926 2213889 2951852 4427778 8855556 58451759 116903518 175355277 233807036 350710554 701421108 1695101011 3390202022 5085303033 6780404044 10170606066 20341212132