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20208647230 = 252020864723
BaseRepresentation
bin10010110100100001…
…110111110000111110
31221011101010122102221
4102310201313300332
5312341403202410
613141141235554
71313534444602
oct226441676076
957141118387
1020208647230
118630288852
123abba02bba
131ba099bb35
14d99cb9502
157d42324da
hex4b4877c3e

20208647230 has 8 divisors (see below), whose sum is σ = 36375565032. Its totient is φ = 8083458888.

The previous prime is 20208647213. The next prime is 20208647279. The reversal of 20208647230 is 3274680202.

20208647230 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×202086472303 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1010432352 + ... + 1010432371.

It is an arithmetic number, because the mean of its divisors is an integer number (4546945629).

Almost surely, 220208647230 is an apocalyptic number.

20208647230 is a deficient number, since it is larger than the sum of its proper divisors (16166917802).

20208647230 is a wasteful number, since it uses less digits than its factorization.

20208647230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020864730.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 20208647230 in words is "twenty billion, two hundred eight million, six hundred forty-seven thousand, two hundred thirty".

Divisors: 1 2 5 10 2020864723 4041729446 10104323615 20208647230