Search a number
-
+
213211003020 = 22353553516717
BaseRepresentation
bin1100011010010001011…
…1011011100010001100
3202101100001010011200120
43012210113123202030
511443124004044040
6241540415424540
721255365423541
oct3064427334214
9671301104616
10213211003020
1182471064314
12353a3b25150
131714b32b422
14a468894bc8
15582d1a57d0
hex31a45db88c

213211003020 has 24 divisors (see below), whose sum is σ = 596990808624. Its totient is φ = 56856267456.

The previous prime is 213211003001. The next prime is 213211003067. The reversal of 213211003020 is 20300112312.

It is a super-3 number, since 3×2132110030203 (a number of 35 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1776758299 + ... + 1776758418.

It is an arithmetic number, because the mean of its divisors is an integer number (24874617026).

Almost surely, 2213211003020 is an apocalyptic number.

213211003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213211003020 is an abundant number, since it is smaller than the sum of its proper divisors (383779805604).

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

213211003020 is a wasteful number, since it uses less digits than its factorization.

213211003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553516729 (or 3553516727 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 213211003020 its reverse (20300112312), we get a palindrome (233511115332).

The spelling of 213211003020 in words is "two hundred thirteen billion, two hundred eleven million, three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3553516717 7107033434 10660550151 14214066868 17767583585 21321100302 35535167170 42642200604 53302750755 71070334340 106605501510 213211003020