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51492298 = 21113180043
BaseRepresentation
bin1100010001101…
…1010111001010
310120220002011011
43010123113022
5101140223143
65035354134
71163451214
oct304332712
9116802134
1051492298
112707aa20
12152b294a
13a88b720
146ba55b4
1547c1e9d
hex311b5ca

51492298 has 16 divisors (see below), whose sum is σ = 90742176. Its totient is φ = 21605040.

The previous prime is 51492293. The next prime is 51492341. The reversal of 51492298 is 89229415.

51492298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51492298.

It is not an unprimeable number, because it can be changed into a prime (51492293) 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 7 ways as a sum of consecutive naturals, for example, 89736 + ... + 90307.

It is an arithmetic number, because the mean of its divisors is an integer number (5671386).

Almost surely, 251492298 is an apocalyptic number.

51492298 is a deficient number, since it is larger than the sum of its proper divisors (39249878).

51492298 is a wasteful number, since it uses less digits than its factorization.

51492298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180069.

The product of its digits is 51840, while the sum is 40.

The square root of 51492298 is about 7175.8134033711. The cubic root of 51492298 is about 372.0323949512.

It can be divided in two parts, 5149 and 2298, that added together give a palindrome (7447).

The spelling of 51492298 in words is "fifty-one million, four hundred ninety-two thousand, two hundred ninety-eight".

Divisors: 1 2 11 13 22 26 143 286 180043 360086 1980473 2340559 3960946 4681118 25746149 51492298