Base | Representation |
---|---|
bin | 111111001111111… |
… | …1110001001001100 |
3 | 12110220111112022020 |
4 | 1332133332021030 |
5 | 13321302411340 |
6 | 550332250140 |
7 | 103410224232 |
oct | 17637761114 |
9 | 5426445266 |
10 | 2122310220 |
11 | 999a97098 |
12 | 4b2910950 |
13 | 27a8cc984 |
14 | 161c16952 |
15 | c64c29d0 |
hex | 7e7fe24c |
2122310220 has 48 divisors (see below), whose sum is σ = 6134166528. Its totient is φ = 547692480.
The previous prime is 2122310207. The next prime is 2122310221. The reversal of 2122310220 is 220132212.
It is a happy number.
It is a super-3 number, since 3×21223102203 (a number of 29 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 2122310220.
It is not an unprimeable number, because it can be changed into a prime (2122310221) 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, 568654 + ... + 572373.
It is an arithmetic number, because the mean of its divisors is an integer number (127795136).
Almost surely, 22122310220 is an apocalyptic number.
2122310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2122310220 is an abundant number, since it is smaller than the sum of its proper divisors (4011856308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2122310220 is a wasteful number, since it uses less digits than its factorization.
2122310220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1141070 (or 1141068 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 2122310220 is about 46068.5382880768. The cubic root of 2122310220 is about 1285.0981206648.
Adding to 2122310220 its reverse (220132212), we get a palindrome (2342442432).
The spelling of 2122310220 in words is "two billion, one hundred twenty-two million, three hundred ten thousand, two hundred twenty".
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