Search a number
-
+
20102210993 = 79627140577
BaseRepresentation
bin10010101110001011…
…110110010110110001
31220212221212010101002
4102232023312112301
5312132131222433
613122420051345
71311102655064
oct225613662661
956787763332
1020102210993
1185861a0717
123a90233b55
131b84913907
14d89ad08db
157c9c0a9e8
hex4ae2f65b1

20102210993 has 8 divisors (see below), whose sum is σ = 20360417280. Its totient is φ = 19844098560.

The previous prime is 20102210977. The next prime is 20102211001. The reversal of 20102210993 is 39901220102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102210993 - 24 = 20102210977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20102210893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475121 + ... + 515697.

It is an arithmetic number, because the mean of its divisors is an integer number (2545052160).

Almost surely, 220102210993 is an apocalyptic number.

It is an amenable number.

20102210993 is a deficient number, since it is larger than the sum of its proper divisors (258206287).

20102210993 is an equidigital number, since it uses as much as digits as its factorization.

20102210993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46927.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 20102210993 in words is "twenty billion, one hundred two million, two hundred ten thousand, nine hundred ninety-three".

Divisors: 1 79 6271 40577 495409 3205583 254458367 20102210993