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54344121 = 3131781967
BaseRepresentation
bin1100111101001…
…1100110111001
310210020222010020
43033103212321
5102403002441
65220441053
71226626446
oct317234671
9123228106
1054344121
11287485a7
1216249189
13b3497b0
1473089cd
154b86e66
hex33d39b9

54344121 has 16 divisors (see below), whose sum is σ = 82623744. Its totient is φ = 31474944.

The previous prime is 54344117. The next prime is 54344149. The reversal of 54344121 is 12144345.

It is not a de Polignac number, because 54344121 - 22 = 54344117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54344091 and 54344100.

It is not an unprimeable number, because it can be changed into a prime (54344111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40321 + ... + 41646.

It is an arithmetic number, because the mean of its divisors is an integer number (5163984).

Almost surely, 254344121 is an apocalyptic number.

54344121 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54344121 is a deficient number, since it is larger than the sum of its proper divisors (28279623).

54344121 is a wasteful number, since it uses less digits than its factorization.

54344121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82000.

The product of its digits is 1920, while the sum is 24.

The square root of 54344121 is about 7371.8465122383. The cubic root of 54344121 is about 378.7775141489. Note that the first 3 decimals are identical.

Adding to 54344121 its reverse (12144345), we get a palindrome (66488466).

The spelling of 54344121 in words is "fifty-four million, three hundred forty-four thousand, one hundred twenty-one".

Divisors: 1 3 13 17 39 51 221 663 81967 245901 1065571 1393439 3196713 4180317 18114707 54344121