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54022331 = 11232937199
BaseRepresentation
bin1100111000010…
…1000010111011
310202122121201002
43032011002323
5102312203311
65205515215
71224116336
oct316050273
9122577632
1054022331
1128548860
1216112b0b
13b26619c
14726361d
154b2193b
hex33850bb

54022331 has 32 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 43908480.

The previous prime is 54022321. The next prime is 54022337. The reversal of 54022331 is 13322045.

It is a happy number.

54022331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-54022331 is a prime.

It is a super-2 number, since 2×540223312 = 5836824493347122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54022337) 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 31 ways as a sum of consecutive naturals, for example, 271370 + ... + 271568.

It is an arithmetic number, because the mean of its divisors is an integer number (2052000).

Almost surely, 254022331 is an apocalyptic number.

54022331 is a deficient number, since it is larger than the sum of its proper divisors (11641669).

54022331 is a wasteful number, since it uses less digits than its factorization.

54022331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 54022331 is about 7349.9885033924. The cubic root of 54022331 is about 378.0284101898.

Adding to 54022331 its reverse (13322045), we get a palindrome (67344376).

The spelling of 54022331 in words is "fifty-four million, twenty-two thousand, three hundred thirty-one".

Divisors: 1 11 23 29 37 199 253 319 407 667 851 1073 2189 4577 5771 7337 7363 9361 11803 24679 50347 63481 80993 132733 169349 213527 271469 1460063 1862839 2348797 4911121 54022331