Base | Representation |
---|---|
bin | 1100001100100… |
… | …0000111111101 |
3 | 10120020202110201 |
4 | 3003020013331 |
5 | 101043320412 |
6 | 5024203501 |
7 | 1160531215 |
oct | 303100775 |
9 | 116222421 |
10 | 51151357 |
11 | 26967854 |
12 | 15169591 |
13 | a79c49a |
14 | 6b17245 |
15 | 4755e57 |
hex | 30c81fd |
51151357 has 2 divisors, whose sum is σ = 51151358. Its totient is φ = 51151356.
The previous prime is 51151343. The next prime is 51151403. The reversal of 51151357 is 75315115.
51151357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 37527876 + 13623481 = 6126^2 + 3691^2 .
It is a cyclic number.
It is not a de Polignac number, because 51151357 - 27 = 51151229 is a prime.
It is a super-2 number, since 2×511513572 = 5232922645882898, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (51151327) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575678 + 25575679.
It is an arithmetic number, because the mean of its divisors is an integer number (25575679).
Almost surely, 251151357 is an apocalyptic number.
It is an amenable number.
51151357 is a deficient number, since it is larger than the sum of its proper divisors (1).
51151357 is an equidigital number, since it uses as much as digits as its factorization.
51151357 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2625, while the sum is 28.
The square root of 51151357 is about 7152.0176873383. The cubic root of 51151357 is about 371.2094752593.
The spelling of 51151357 in words is "fifty-one million, one hundred fifty-one thousand, three hundred fifty-seven".
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