Base | Representation |
---|---|
bin | 1100001011001… |
… | …1000110100010 |
3 | 10120002101100120 |
4 | 3002303012202 |
5 | 101033042000 |
6 | 5022301110 |
7 | 1160022165 |
oct | 302630642 |
9 | 116071316 |
10 | 51065250 |
11 | 26909095 |
12 | 15127796 |
13 | a76c232 |
14 | 6ad3adc |
15 | 473a6a0 |
hex | 30b31a2 |
51065250 has 32 divisors (see below), whose sum is σ = 127460736. Its totient is φ = 13617200.
The previous prime is 51065233. The next prime is 51065257. The reversal of 51065250 is 5256015.
It is a self number, because there is not a number n which added to its sum of digits gives 51065250.
It is not an unprimeable number, because it can be changed into a prime (51065257) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33294 + ... + 34793.
It is an arithmetic number, because the mean of its divisors is an integer number (3983148).
Almost surely, 251065250 is an apocalyptic number.
51065250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
51065250 is an abundant number, since it is smaller than the sum of its proper divisors (76395486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51065250 is a wasteful number, since it uses less digits than its factorization.
51065250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68107 (or 68097 counting only the distinct ones).
The product of its (nonzero) digits is 1500, while the sum is 24.
The square root of 51065250 is about 7145.9953820304. The cubic root of 51065250 is about 371.0010631492.
It can be divided in two parts, 51065 and 250, that added together give a palindrome (51315).
The spelling of 51065250 in words is "fifty-one million, sixty-five thousand, two hundred fifty".
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