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20013232210 = 257138373597
BaseRepresentation
bin10010101000111000…
…011011000001010010
31220122202102112102121
4102220320123001102
5311441341412320
613105521004454
71305642444526
oct225070330122
956582375377
1020013232210
11853aa47634
123a6648372a
131b6c35b74a
14d7bd6bd86
157c1ed18aa
hex4a8e1b052

20013232210 has 32 divisors (see below), whose sum is σ = 36627075072. Its totient is φ = 7871828160.

The previous prime is 20013232193. The next prime is 20013232231. The reversal of 20013232210 is 1223231002.

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, 235132 + ... + 308728.

It is an arithmetic number, because the mean of its divisors is an integer number (1144596096).

Almost surely, 220013232210 is an apocalyptic number.

20013232210 is a deficient number, since it is larger than the sum of its proper divisors (16613842862).

20013232210 is a wasteful number, since it uses less digits than its factorization.

20013232210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74058.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20013232210 its reverse (1223231002), we get a palindrome (21236463212).

The spelling of 20013232210 in words is "twenty billion, thirteen million, two hundred thirty-two thousand, two hundred ten".

Divisors: 1 2 5 10 71 142 355 383 710 766 1915 3830 27193 54386 73597 135965 147194 271930 367985 735970 5225387 10450774 26126935 28187651 52253870 56375302 140938255 281876510 2001323221 4002646442 10006616105 20013232210