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20100210122 = 210050105061
BaseRepresentation
bin10010101110000100…
…001101110111001010
31220212211002110200202
4102232010031313022
5312131123210442
613122305132202
71311046652456
oct225604156712
956784073622
1020100210122
118585054403
123a8b62a062
131b84392c75
14d8972d666
157c9962c32
hex4ae10ddca

20100210122 has 4 divisors (see below), whose sum is σ = 30150315186. Its totient is φ = 10050105060.

The previous prime is 20100210103. The next prime is 20100210127. The reversal of 20100210122 is 22101200102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13414040761 + 6686169361 = 115819^2 + 81769^2 .

It is not an unprimeable number, because it can be changed into a prime (20100210127) by changing a digit.

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 as a sum of consecutive naturals, namely, 5025052529 + ... + 5025052532.

Almost surely, 220100210122 is an apocalyptic number.

20100210122 is a deficient number, since it is larger than the sum of its proper divisors (10050105064).

20100210122 is a wasteful number, since it uses less digits than its factorization.

20100210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050105063.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20100210122 its reverse (22101200102), we get a palindrome (42201410224).

The spelling of 20100210122 in words is "twenty billion, one hundred million, two hundred ten thousand, one hundred twenty-two".

Divisors: 1 2 10050105061 20100210122