Search a number
-
+
10212000220 = 225510600011
BaseRepresentation
bin10011000001010111…
…01100000111011100
3222100200200100202101
421200223230013130
5131403233001340
64405154334444
7511030366252
oct114053540734
928320610671
1010212000220
114370453a04
121b8bb8a424
13c698b68a6
146cc38a5d2
153eb7d7c9a
hex260aec1dc

10212000220 has 12 divisors (see below), whose sum is σ = 21445200504. Its totient is φ = 4084800080.

The previous prime is 10212000217. The next prime is 10212000221. The reversal of 10212000220 is 2200021201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10212000197 and 10212000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212000221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255299986 + ... + 255300025.

It is an arithmetic number, because the mean of its divisors is an integer number (1787100042).

Almost surely, 210212000220 is an apocalyptic number.

10212000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212000220 is an abundant number, since it is smaller than the sum of its proper divisors (11233200284).

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

10212000220 is a wasteful number, since it uses less digits than its factorization.

10212000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510600020 (or 510600018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10212000220 its reverse (2200021201), we get a palindrome (12412021421).

The spelling of 10212000220 in words is "ten billion, two hundred twelve million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 510600011 1021200022 2042400044 2553000055 5106000110 10212000220