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54121333 = 721104517
BaseRepresentation
bin1100111001110…
…1001101110101
310202211122111211
43032131031311
5102323340313
65212001421
71225011100
oct316351565
9122748454
1054121333
1128606182
1216160271
13b29c276
14728b737
154b40e3d
hex339d375

54121333 has 6 divisors (see below), whose sum is σ = 62957526. Its totient is φ = 46389672.

The previous prime is 54121313. The next prime is 54121339. The reversal of 54121333 is 33312145.

It can be written as a sum of positive squares in only one way, i.e., 49885969 + 4235364 = 7063^2 + 2058^2 .

It is a de Polignac number, because none of the positive numbers 2k-54121333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54121339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552210 + ... + 552307.

It is an arithmetic number, because the mean of its divisors is an integer number (10492921).

Almost surely, 254121333 is an apocalyptic number.

It is an amenable number.

54121333 is a deficient number, since it is larger than the sum of its proper divisors (8836193).

54121333 is a wasteful number, since it uses less digits than its factorization.

54121333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104531 (or 1104524 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 54121333 is about 7356.7202610946. The cubic root of 54121333 is about 378.2591957991.

Adding to 54121333 its reverse (33312145), we get a palindrome (87433478).

The spelling of 54121333 in words is "fifty-four million, one hundred twenty-one thousand, three hundred thirty-three".

Divisors: 1 7 49 1104517 7731619 54121333