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51070078 = 2103247913
BaseRepresentation
bin1100001011010…
…0010001111110
310120002121222101
43002310101332
5101033220303
65022335314
71160042233
oct302642176
9116077871
1051070078
1126911784
121512a53a
13a7714a7
146ad578a
15473bd1d
hex30b447e

51070078 has 8 divisors (see below), whose sum is σ = 77349168. Its totient is φ = 25287024.

The previous prime is 51070067. The next prime is 51070139. The reversal of 51070078 is 87007015.

It is a happy number.

51070078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 123751 + ... + 124162.

It is an arithmetic number, because the mean of its divisors is an integer number (9668646).

Almost surely, 251070078 is an apocalyptic number.

51070078 is a deficient number, since it is larger than the sum of its proper divisors (26279090).

51070078 is a wasteful number, since it uses less digits than its factorization.

51070078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248018.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 51070078 is about 7146.3331856274. Note that the first 3 decimals coincide. The cubic root of 51070078 is about 371.0127549662.

It can be divided in two parts, 5107007 and 8, that added together give a palindrome (5107015).

The spelling of 51070078 in words is "fifty-one million, seventy thousand, seventy-eight".

Divisors: 1 2 103 206 247913 495826 25535039 51070078