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20201022330 = 2356397105263
BaseRepresentation
bin10010110100000100…
…110010001101111010
31221010211210021001020
4102310010302031322
5312332430203310
613140310003310
71313412566556
oct226404621572
957124707036
1020201022330
118626a50085
123ab9346536
131b9c22c368
14d98c92866
157d3728170
hex4b413237a

20201022330 has 32 divisors (see below), whose sum is σ = 48490493184. Its totient is φ = 5386046016.

The previous prime is 20201022329. The next prime is 20201022343. The reversal of 20201022330 is 3322010202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139279 + ... + 244541.

It is an arithmetic number, because the mean of its divisors is an integer number (1515327912).

Almost surely, 220201022330 is an apocalyptic number.

20201022330 is an abundant number, since it is smaller than the sum of its proper divisors (28289470854).

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

20201022330 is a wasteful number, since it uses less digits than its factorization.

20201022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111670.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20201022330 its reverse (3322010202), we get a palindrome (23523032532).

The spelling of 20201022330 in words is "twenty billion, two hundred one million, twenty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 6397 12794 19191 31985 38382 63970 95955 105263 191910 210526 315789 526315 631578 1052630 1578945 3157890 673367411 1346734822 2020102233 3366837055 4040204466 6733674110 10100511165 20201022330