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20102340122 = 213997184539
BaseRepresentation
bin10010101110001100…
…010101111000011010
31220212222002200111122
4102232030111320122
5312132144340442
613122422525242
71311104033414
oct225614257032
956788080448
1020102340122
118586279737
123a90296822
131b8495a617
14d89b259b4
157c9c33dd2
hex4ae315e1a

20102340122 has 8 divisors (see below), whose sum is σ = 30175068000. Its totient is φ = 10043984124.

The previous prime is 20102340113. The next prime is 20102340133. The reversal of 20102340122 is 22104320102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20102340122.

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 3 ways as a sum of consecutive naturals, for example, 3589472 + ... + 3595067.

It is an arithmetic number, because the mean of its divisors is an integer number (3771883500).

Almost surely, 220102340122 is an apocalyptic number.

20102340122 is a deficient number, since it is larger than the sum of its proper divisors (10072727878).

20102340122 is a wasteful number, since it uses less digits than its factorization.

20102340122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7185940.

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

Adding to 20102340122 its reverse (22104320102), we get a palindrome (42206660224).

The spelling of 20102340122 in words is "twenty billion, one hundred two million, three hundred forty thousand, one hundred twenty-two".

Divisors: 1 2 1399 2798 7184539 14369078 10051170061 20102340122