Base | Representation |
---|---|
bin | 1100010111010010111… |
… | …1011111000100001100 |
3 | 202022021100122202010101 |
4 | 3011310233133010030 |
5 | 11440004433040242 |
6 | 241325234220444 |
7 | 21226524142300 |
oct | 3056457370414 |
9 | 668240582111 |
10 | 212412002572 |
11 | 820a1046470 |
12 | 35200424724 |
13 | 170519384b3 |
14 | a3d0709d00 |
15 | 57d2e799b7 |
hex | 3174bdf10c |
212412002572 has 72 divisors (see below), whose sum is σ = 472294525248. Its totient is φ = 82657159200.
The previous prime is 212412002527. The next prime is 212412002581. The reversal of 212412002572 is 275200214212.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is a self number, because there is not a number n which added to its sum of digits gives 212412002572.
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, 1723447 + ... + 1842577.
It is an arithmetic number, because the mean of its divisors is an integer number (6559646184).
Almost surely, 2212412002572 is an apocalyptic number.
212412002572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212412002572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236147262624).
212412002572 is an abundant number, since it is smaller than the sum of its proper divisors (259882522676).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212412002572 is a wasteful number, since it uses less digits than its factorization.
212412002572 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 119987 (or 119978 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 28.
Adding to 212412002572 its reverse (275200214212), we get a palindrome (487612216784).
The spelling of 212412002572 in words is "two hundred twelve billion, four hundred twelve million, two thousand, five hundred seventy-two".
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