Search a number
-
+
20201010210 = 2325792841211
BaseRepresentation
bin10010110100000100…
…101111010000100010
31221010211202122102100
4102310010233100202
5312332424311320
613140305431230
71313412516333
oct226404572042
957124678370
1020201010210
118626a41a67
123ab933b516
131b9c2269a4
14d98c8c28a
157d3724790
hex4b412f422

20201010210 has 48 divisors (see below), whose sum is σ = 53187488640. Its totient is φ = 5318745120.

The previous prime is 20201010199. The next prime is 20201010253. The reversal of 20201010210 is 1201010202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20201010192 and 20201010201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1413496 + ... + 1427715.

It is an arithmetic number, because the mean of its divisors is an integer number (1108072680).

Almost surely, 220201010210 is an apocalyptic number.

20201010210 is an abundant number, since it is smaller than the sum of its proper divisors (32986478430).

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

20201010210 is a wasteful number, since it uses less digits than its factorization.

20201010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841303 (or 2841300 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20201010210 its reverse (1201010202), we get a palindrome (21402020412).

The spelling of 20201010210 in words is "twenty billion, two hundred one million, ten thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 79 90 158 237 395 474 711 790 1185 1422 2370 3555 7110 2841211 5682422 8523633 14206055 17047266 25570899 28412110 42618165 51141798 85236330 127854495 224455669 255708990 448911338 673367007 1122278345 1346734014 2020101021 2244556690 3366835035 4040202042 6733670070 10100505105 20201010210