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20100000210 = 2351374890511
BaseRepresentation
bin10010101110000011…
…011010100111010010
31220212210200210202020
4102232003122213102
5312131100001320
613122300432310
71311045116463
oct225603324722
956783623666
1020100000210
118584a20724
123a8b548696
131b8431b564
14d896b6d6a
157c9920940
hex4ae0da9d2

20100000210 has 32 divisors (see below), whose sum is σ = 48592127232. Its totient is φ = 5320874880.

The previous prime is 20100000197. The next prime is 20100000227. The reversal of 20100000210 is 1200000102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2441146 + ... + 2449365.

It is an arithmetic number, because the mean of its divisors is an integer number (1518503976).

Almost surely, 220100000210 is an apocalyptic number.

20100000210 is an abundant number, since it is smaller than the sum of its proper divisors (28492127022).

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

20100000210 is a wasteful number, since it uses less digits than its factorization.

20100000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890658.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20100000210 its reverse (1200000102), we get a palindrome (21300000312).

The spelling of 20100000210 in words is "twenty billion, one hundred million, two hundred ten", and thus it is an aban number.

Divisors: 1 2 3 5 6 10 15 30 137 274 411 685 822 1370 2055 4110 4890511 9781022 14671533 24452555 29343066 48905110 73357665 146715330 670000007 1340000014 2010000021 3350000035 4020000042 6700000070 10050000105 20100000210