Base | Representation |
---|---|
bin | 101111110011111… |
… | …000111100011101 |
3 | 2001220100111220000 |
4 | 233303320330131 |
5 | 3120321203431 |
6 | 211332244513 |
7 | 25610002335 |
oct | 5763707435 |
9 | 2056314800 |
10 | 802131741 |
11 | 3818674a4 |
12 | 1a4770739 |
13 | ca24b288 |
14 | 787620c5 |
15 | 4a6489e6 |
hex | 2fcf8f1d |
802131741 has 10 divisors (see below), whose sum is σ = 1198246302. Its totient is φ = 534754440.
The previous prime is 802131719. The next prime is 802131767. The reversal of 802131741 is 147131208.
It can be written as a sum of positive squares in only one way, i.e., 518882841 + 283248900 = 22779^2 + 16830^2 .
It is not a de Polignac number, because 802131741 - 25 = 802131709 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (802133741) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4951350 + ... + 4951511.
Almost surely, 2802131741 is an apocalyptic number.
802131741 is a gapful number since it is divisible by the number (81) formed by its first and last digit.
It is an amenable number.
802131741 is a deficient number, since it is larger than the sum of its proper divisors (396114561).
802131741 is an equidigital number, since it uses as much as digits as its factorization.
802131741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9902873 (or 9902864 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 802131741 is about 28321.9303897174. The cubic root of 802131741 is about 929.1415908489.
Adding to 802131741 its reverse (147131208), we get a palindrome (949262949).
The spelling of 802131741 in words is "eight hundred two million, one hundred thirty-one thousand, seven hundred forty-one".
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