Base | Representation |
---|---|
bin | 1011111100010011010100 |
3 | 12220001100102 |
4 | 23330103110 |
5 | 1300134310 |
6 | 151033232 |
7 | 35416025 |
oct | 13742324 |
9 | 5801312 |
10 | 3130580 |
11 | 1849062 |
12 | 106b818 |
13 | 857c1b |
14 | 5b6c4c |
15 | 41c8a5 |
hex | 2fc4d4 |
3130580 has 24 divisors (see below), whose sum is σ = 6622728. Its totient is φ = 1243008.
The previous prime is 3130577. The next prime is 3130583. The reversal of 3130580 is 850313.
It is an interprime number because it is at equal distance from previous prime (3130577) and next prime (3130583).
It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 2617924 = 716^2 + 1618^2 .
It is a super-3 number, since 3×31305803 = 92044040294973336000, which contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3130583) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642 + ... + 3638.
It is an arithmetic number, because the mean of its divisors is an integer number (275947).
Almost surely, 23130580 is an apocalyptic number.
It is an amenable number.
3130580 is an abundant number, since it is smaller than the sum of its proper divisors (3492148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3130580 is a wasteful number, since it uses less digits than its factorization.
3130580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1163 (or 1161 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 3130580 is about 1769.3445113940. The cubic root of 3130580 is about 146.2878539363.
Adding to 3130580 its reverse (850313), we get a palindrome (3980893).
The spelling of 3130580 in words is "three million, one hundred thirty thousand, five hundred eighty".
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