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55260039 = 342143753
BaseRepresentation
bin1101001011001…
…1001110000111
310211222111112010
43102303032013
5103121310124
65252225303
71240462662
oct322631607
9124874463
1055260039
112921375a
121660b233
13b5aa663
1474a66d9
154cb8529
hex34b3387

55260039 has 8 divisors (see below), whose sum is σ = 73856752. Its totient is φ = 36751680.

The previous prime is 55260019. The next prime is 55260041. The reversal of 55260039 is 93006255.

55260039 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55260039 - 28 = 55259783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55259988 and 55260015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55260019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20614 + ... + 23139.

It is an arithmetic number, because the mean of its divisors is an integer number (9232094).

Almost surely, 255260039 is an apocalyptic number.

55260039 is a deficient number, since it is larger than the sum of its proper divisors (18596713).

55260039 is a wasteful number, since it uses less digits than its factorization.

55260039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44177.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 55260039 is about 7433.7096392044. The cubic root of 55260039 is about 380.8936469914.

The spelling of 55260039 in words is "fifty-five million, two hundred sixty thousand, thirty-nine".

Divisors: 1 3 421 1263 43753 131259 18420013 55260039