Base | Representation |
---|---|
bin | 100110101111111… |
… | …1010110111100100 |
3 | 10100121120200020012 |
4 | 1031133322313210 |
5 | 10130323310340 |
6 | 333004025352 |
7 | 44135426045 |
oct | 11537726744 |
9 | 3317520205 |
10 | 1300213220 |
11 | 607a33489 |
12 | 303532258 |
13 | 1794b1047 |
14 | c49788cc |
15 | 79233565 |
hex | 4d7fade4 |
1300213220 has 48 divisors (see below), whose sum is σ = 2796690288. Its totient is φ = 507617280.
The previous prime is 1300213181. The next prime is 1300213247. The reversal of 1300213220 is 223120031.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 178084 + 1300035136 = 422^2 + 36056^2 .
It is a junction number, because it is equal to n+sod(n) for n = 1300213195 and 1300213204.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137030 + ... + 146210.
It is an arithmetic number, because the mean of its divisors is an integer number (58264381).
Almost surely, 21300213220 is an apocalyptic number.
1300213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1300213220 is an abundant number, since it is smaller than the sum of its proper divisors (1496477068).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1300213220 is a wasteful number, since it uses less digits than its factorization.
1300213220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9360 (or 9358 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 1300213220 is about 36058.4694628044. The cubic root of 1300213220 is about 1091.4525482071.
Adding to 1300213220 its reverse (223120031), we get a palindrome (1523333251).
The spelling of 1300213220 in words is "one billion, three hundred million, two hundred thirteen thousand, two hundred twenty".
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