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51104023 = 173006119
BaseRepresentation
bin1100001011110…
…0100100010111
310120011100112121
43002330210113
5101040312043
65023200411
71160243215
oct302744427
9116140477
1051104023
1126935233
1215146107
13a783a89
146b03cb5
154746ded
hex30bc917

51104023 has 4 divisors (see below), whose sum is σ = 54110160. Its totient is φ = 48097888.

The previous prime is 51103979. The next prime is 51104033. The reversal of 51104023 is 32040115.

51104023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32040115 = 56408023.

It is a cyclic number.

It is not a de Polignac number, because 51104023 - 213 = 51095831 is a prime.

It is a super-2 number, since 2×511040232 = 5223242333569058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51103988 and 51104006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51104033) 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 in 3 ways as a sum of consecutive naturals, for example, 1503043 + ... + 1503076.

It is an arithmetic number, because the mean of its divisors is an integer number (13527540).

Almost surely, 251104023 is an apocalyptic number.

51104023 is a deficient number, since it is larger than the sum of its proper divisors (3006137).

51104023 is a wasteful number, since it uses less digits than its factorization.

51104023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006136.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51104023 is about 7148.7077853274. The cubic root of 51104023 is about 371.0949377184.

Adding to 51104023 its reverse (32040115), we get a palindrome (83144138).

The spelling of 51104023 in words is "fifty-one million, one hundred four thousand, twenty-three".

Divisors: 1 17 3006119 51104023