Search a number
-
+
51142354 = 265938803
BaseRepresentation
bin1100001100010…
…1111011010010
310120020022010021
43003011323102
5101043023404
65024054054
71160463034
oct303057322
9116208107
1051142354
112696100a
121516432a
13a798363
146b13c54
154753454
hex30c5ed2

51142354 has 8 divisors (see below), whose sum is σ = 76831920. Its totient is φ = 25531716.

The previous prime is 51142303. The next prime is 51142361. The reversal of 51142354 is 45324115.

It is a happy number.

51142354 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 super-2 number, since 2×511423542 = 5231080745322632, which contains 22 as substring.

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, 18084 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (9603990).

Almost surely, 251142354 is an apocalyptic number.

51142354 is a deficient number, since it is larger than the sum of its proper divisors (25689566).

51142354 is a wasteful number, since it uses less digits than its factorization.

51142354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39464.

The product of its digits is 2400, while the sum is 25.

The square root of 51142354 is about 7151.3882568352. The cubic root of 51142354 is about 371.1876954852.

Adding to 51142354 its reverse (45324115), we get a palindrome (96466469).

The spelling of 51142354 in words is "fifty-one million, one hundred forty-two thousand, three hundred fifty-four".

Divisors: 1 2 659 1318 38803 77606 25571177 51142354