Search a number
-
+
20013230300 = 2252734998171
BaseRepresentation
bin10010101000111000…
…011010100011011100
31220122202102102210212
4102220320122203130
5311441341332200
613105520551552
71305642436130
oct225070324334
956582372725
1020013230300
11853aa46158
123a664825b8
131b6c35a90b
14d7bd6b3c0
157c1ed1035
hex4a8e1a8dc

20013230300 has 72 divisors (see below), whose sum is σ = 49653072000. Its totient is φ = 6858878400.

The previous prime is 20013230257. The next prime is 20013230359. The reversal of 20013230300 is 303231002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 2445215 + ... + 2453385.

It is an arithmetic number, because the mean of its divisors is an integer number (689626000).

Almost surely, 220013230300 is an apocalyptic number.

20013230300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013230300 is an abundant number, since it is smaller than the sum of its proper divisors (29639841700).

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

20013230300 is a wasteful number, since it uses less digits than its factorization.

20013230300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691 (or 11684 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20013230300 its reverse (303231002), we get a palindrome (20316461302).

The spelling of 20013230300 in words is "twenty billion, thirteen million, two hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 3499 6998 8171 13996 16342 17495 24493 32684 34990 40855 48986 57197 69980 81710 87475 97972 114394 122465 163420 174950 204275 228788 244930 285985 349900 408550 489860 571970 612325 817100 1143940 1224650 1429925 2449300 2859850 5719700 28590329 57180658 114361316 142951645 200132303 285903290 400264606 571806580 714758225 800529212 1000661515 1429516450 2001323030 2859032900 4002646060 5003307575 10006615150 20013230300