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51040670 = 255104067
BaseRepresentation
bin1100001010110…
…1000110011110
310120001010122012
43002231012132
5101031300140
65021551222
71156560422
oct302550636
9116033565
1051040670
11268a167a
1215115512
13a760ca5
146ac8b82
154733265
hex30ad19e

51040670 has 8 divisors (see below), whose sum is σ = 91873224. Its totient is φ = 20416264.

The previous prime is 51040607. The next prime is 51040727. The reversal of 51040670 is 7604015.

51040670 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 Curzon number.

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, 2552024 + ... + 2552043.

It is an arithmetic number, because the mean of its divisors is an integer number (11484153).

Almost surely, 251040670 is an apocalyptic number.

51040670 is a deficient number, since it is larger than the sum of its proper divisors (40832554).

51040670 is a wasteful number, since it uses less digits than its factorization.

51040670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104074.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51040670 is about 7144.2753306406. The cubic root of 51040670 is about 370.9415271001.

Adding to 51040670 its reverse (7604015), we get a palindrome (58644685).

The spelling of 51040670 in words is "fifty-one million, forty thousand, six hundred seventy".

Divisors: 1 2 5 10 5104067 10208134 25520335 51040670