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20010022210 = 2517127926819
BaseRepresentation
bin10010101000101100…
…001011010101000010
31220122112101110010201
4102220230023111002
5311440031202320
613105324115414
71305603245113
oct225054132502
956575343121
1020010022210
118539154942
123a65395b6a
131b6b7a6639
14d7b77420a
157c1a9a70a
hex4a8b0b542

20010022210 has 32 divisors (see below), whose sum is σ = 38437079040. Its totient is φ = 7473860352.

The previous prime is 20010022187. The next prime is 20010022213. The reversal of 20010022210 is 1222001002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20010022213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441820 + ... + 484999.

It is an arithmetic number, because the mean of its divisors is an integer number (1201158720).

Almost surely, 220010022210 is an apocalyptic number.

20010022210 is a deficient number, since it is larger than the sum of its proper divisors (18427056830).

20010022210 is a wasteful number, since it uses less digits than its factorization.

20010022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926970.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20010022210 its reverse (1222001002), we get a palindrome (21232023212).

The spelling of 20010022210 in words is "twenty billion, ten million, twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 127 170 254 635 1270 2159 4318 10795 21590 926819 1853638 4634095 9268190 15755923 31511846 78779615 117706013 157559230 235412026 588530065 1177060130 2001002221 4002004442 10005011105 20010022210