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20013224210 = 2571959255043
BaseRepresentation
bin10010101000111000…
…011001000100010010
31220122202102010110022
4102220320121010102
5311441341133320
613105520503442
71305642412310
oct225070310422
956582363408
1020013224210
11853aa41621
123a6647ab82
131b6c357c05
14d7bd690b0
157c1ece325
hex4a8e19112

20013224210 has 64 divisors (see below), whose sum is σ = 44071603200. Its totient is φ = 6390332352.

The previous prime is 20013224201. The next prime is 20013224219. The reversal of 20013224210 is 1242231002.

It is an interprime number because it is at equal distance from previous prime (20013224201) and next prime (20013224219).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20013224219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49052 + ... + 205991.

It is an arithmetic number, because the mean of its divisors is an integer number (688618800).

Almost surely, 220013224210 is an apocalyptic number.

20013224210 is an abundant number, since it is smaller than the sum of its proper divisors (24058378990).

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

20013224210 is a wasteful number, since it uses less digits than its factorization.

20013224210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255135.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20013224210 its reverse (1242231002), we get a palindrome (21255455212).

The spelling of 20013224210 in words is "twenty billion, thirteen million, two hundred twenty-four thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 19 35 38 59 70 95 118 133 190 266 295 413 590 665 826 1121 1330 2065 2242 4130 5605 7847 11210 15694 39235 78470 255043 510086 1275215 1785301 2550430 3570602 4845817 8926505 9691634 15047537 17853010 24229085 30095074 33920719 48458170 67841438 75237685 105332759 150475370 169603595 210665518 285903203 339207190 526663795 571806406 1053327590 1429516015 2001322421 2859032030 4002644842 10006612105 20013224210