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51001316 = 2212750329
BaseRepresentation
bin1100001010001…
…1011111100100
310112222010122122
43002203133210
5101024020231
65021045112
71156334612
oct302433744
9115863578
1051001316
1126875053
12150b6798
13a7490c2
146ab86b2
15472677b
hex30a37e4

51001316 has 6 divisors (see below), whose sum is σ = 89252310. Its totient is φ = 25500656.

The previous prime is 51001303. The next prime is 51001367. The reversal of 51001316 is 61310015.

51001316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 306916 = 7120^2 + 554^2 .

It is a super-2 number, since 2×510013162 = 5202268467463712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51001294 and 51001303.

It is an unprimeable number.

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, 6375161 + ... + 6375168.

It is an arithmetic number, because the mean of its divisors is an integer number (14875385).

Almost surely, 251001316 is an apocalyptic number.

It is an amenable number.

51001316 is a deficient number, since it is larger than the sum of its proper divisors (38250994).

51001316 is a wasteful number, since it uses less digits than its factorization.

51001316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12750333 (or 12750331 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 51001316 is about 7141.5205663780. The cubic root of 51001316 is about 370.8461666335.

The spelling of 51001316 in words is "fifty-one million, one thousand, three hundred sixteen".

Divisors: 1 2 4 12750329 25500658 51001316