Base | Representation |
---|---|
bin | 111101111000110111001 |
3 | 10211000211200 |
4 | 13233012321 |
5 | 1004343321 |
6 | 111244413 |
7 | 23144265 |
oct | 7570671 |
9 | 3730750 |
10 | 2027961 |
11 | 1165701 |
12 | 819709 |
13 | 5600a0 |
14 | 3ab0a5 |
15 | 2a0d26 |
hex | 1ef1b9 |
2027961 has 12 divisors (see below), whose sum is σ = 3154788. Its totient is φ = 1247904.
The previous prime is 2027959. The next prime is 2028017. The reversal of 2027961 is 1697202.
It can be written as a sum of positive squares in 2 ways, for example, as 189225 + 1838736 = 435^2 + 1356^2 .
It is not a de Polignac number, because 2027961 - 21 = 2027959 is a prime.
It is a super-2 number, since 2×20279612 = 8225251635042, which contains 22 as substring.
It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2027911) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8550 + ... + 8783.
It is an arithmetic number, because the mean of its divisors is an integer number (262899).
22027961 is an apocalyptic number.
It is an amenable number.
2027961 is a deficient number, since it is larger than the sum of its proper divisors (1126827).
2027961 is a wasteful number, since it uses less digits than its factorization.
2027961 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17352 (or 17349 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 2027961 is about 1424.0649563837. The cubic root of 2027961 is about 126.5765340633.
The spelling of 2027961 in words is "two million, twenty-seven thousand, nine hundred sixty-one".
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