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20020201230 = 2351423468967
BaseRepresentation
bin10010101001010011…
…000000011100001110
31220200020112121010110
4102221103000130032
5312000132414410
613110330220450
71306055621421
oct225123003416
956606477113
1020020201230
118543977557
123a68884726
131b7092b823
14d7cc639b8
157c290b720
hex4a94c070e

20020201230 has 32 divisors (see below), whose sum is σ = 48082351104. Its totient is φ = 5334957216.

The previous prime is 20020201183. The next prime is 20020201237. The reversal of 20020201230 is 3210202002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020201237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191794 + ... + 277173.

It is an arithmetic number, because the mean of its divisors is an integer number (1502573472).

Almost surely, 220020201230 is an apocalyptic number.

20020201230 is an abundant number, since it is smaller than the sum of its proper divisors (28062149874).

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

20020201230 is a wasteful number, since it uses less digits than its factorization.

20020201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470400.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20020201230 its reverse (3210202002), we get a palindrome (23230403232).

The spelling of 20020201230 in words is "twenty billion, twenty million, two hundred one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1423 2846 4269 7115 8538 14230 21345 42690 468967 937934 1406901 2344835 2813802 4689670 7034505 14069010 667340041 1334680082 2002020123 3336700205 4004040246 6673400410 10010100615 20020201230