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54436013 = 156734739
BaseRepresentation
bin1100111110101…
…0000010101101
310210102122011122
43033222002231
5102413423023
65222430325
71230461402
oct317520255
9123378148
1054436013
1128800645
12162923a5
13b37c578
1473302a9
154ba42c8
hex33ea0ad

54436013 has 4 divisors (see below), whose sum is σ = 54472320. Its totient is φ = 54399708.

The previous prime is 54435971. The next prime is 54436033. The reversal of 54436013 is 31063445.

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.

It is a cyclic number.

It is not a de Polignac number, because 54436013 - 26 = 54435949 is a prime.

It is a super-2 number, since 2×544360132 = 5926559022672338, 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 (54436033) 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, 15803 + ... + 18936.

It is an arithmetic number, because the mean of its divisors is an integer number (13618080).

Almost surely, 254436013 is an apocalyptic number.

It is an amenable number.

54436013 is a deficient number, since it is larger than the sum of its proper divisors (36307).

54436013 is a wasteful number, since it uses less digits than its factorization.

54436013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36306.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 54436013 is about 7378.0765108529. The cubic root of 54436013 is about 378.9908891046.

Adding to 54436013 its reverse (31063445), we get a palindrome (85499458).

The spelling of 54436013 in words is "fifty-four million, four hundred thirty-six thousand, thirteen".

Divisors: 1 1567 34739 54436013