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20201030112 = 253210427397
BaseRepresentation
bin10010110100000100…
…110100000111100000
31221010211210122201110
4102310010310013200
5312332430430422
613140310103320
71313412631344
oct226404640740
957124718643
1020201030112
118626a55a0a
123ab934ab40
131b9c232a73
14d98c95624
157d372a60c
hex4b41341e0

20201030112 has 24 divisors (see below), whose sum is σ = 53027704296. Its totient is φ = 6733676672.

The previous prime is 20201030089. The next prime is 20201030137. The reversal of 20201030112 is 21103010202.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105213603 + ... + 105213794.

It is an arithmetic number, because the mean of its divisors is an integer number (2209487679).

Almost surely, 220201030112 is an apocalyptic number.

It is an amenable number.

20201030112 is an abundant number, since it is smaller than the sum of its proper divisors (32826674184).

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

20201030112 is a wasteful number, since it uses less digits than its factorization.

20201030112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210427410 (or 210427402 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20201030112 its reverse (21103010202), we get a palindrome (41304040314).

The spelling of 20201030112 in words is "twenty billion, two hundred one million, thirty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 210427397 420854794 631282191 841709588 1262564382 1683419176 2525128764 3366838352 5050257528 6733676704 10100515056 20201030112