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54245669 = 61518819
BaseRepresentation
bin1100111011101…
…1100100100101
310210001222001212
43032323210211
5102341330134
65214401205
71226036432
oct316734445
9123058055
1054245669
1128690635
1216200205
13b313a3a
1472c0b89
154b67bce
hex33bb925

54245669 has 4 divisors (see below), whose sum is σ = 54260640. Its totient is φ = 54230700.

The previous prime is 54245647. The next prime is 54245677. The reversal of 54245669 is 96654245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54245669 is a prime.

It is a super-2 number, since 2×542456692 = 5885185210515122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54245699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742 + ... + 10560.

It is an arithmetic number, because the mean of its divisors is an integer number (13565160).

Almost surely, 254245669 is an apocalyptic number.

It is an amenable number.

54245669 is a deficient number, since it is larger than the sum of its proper divisors (14971).

54245669 is an equidigital number, since it uses as much as digits as its factorization.

54245669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14970.

The product of its digits is 259200, while the sum is 41.

The square root of 54245669 is about 7365.1659180225. The cubic root of 54245669 is about 378.5486396765.

The spelling of 54245669 in words is "fifty-four million, two hundred forty-five thousand, six hundred sixty-nine".

Divisors: 1 6151 8819 54245669