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54187713 = 3229320549
BaseRepresentation
bin1100111010110…
…1011011000001
310202222000120100
43032231123001
5102333001323
65213233013
71225405446
oct316553301
9122860510
1054187713
1128651038
1216192769
13b2c3548
1472a79cd
154b55943
hex33ad6c1

54187713 has 12 divisors (see below), whose sum is σ = 78542100. Its totient is φ = 36000096.

The previous prime is 54187699. The next prime is 54187723. The reversal of 54187713 is 31778145.

It can be written as a sum of positive squares in 2 ways, for example, as 52316289 + 1871424 = 7233^2 + 1368^2 .

It is not a de Polignac number, because 54187713 - 220 = 53139137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54187723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7638 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (6545175).

Almost surely, 254187713 is an apocalyptic number.

It is an amenable number.

54187713 is a deficient number, since it is larger than the sum of its proper divisors (24354387).

54187713 is a wasteful number, since it uses less digits than its factorization.

54187713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20848 (or 20845 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 54187713 is about 7361.2303998720. The cubic root of 54187713 is about 378.4137780168.

It can be divided in two parts, 5418 and 7713, that added together give a palindrome (13131).

The spelling of 54187713 in words is "fifty-four million, one hundred eighty-seven thousand, seven hundred thirteen".

Divisors: 1 3 9 293 879 2637 20549 61647 184941 6020857 18062571 54187713