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53387226 = 23219374219
BaseRepresentation
bin1100101110100…
…1111111011010
310201110100111200
43023221333122
5102131342401
65144135030
71215532614
oct313517732
9121410450
1053387226
1128154682
1215a67476
13b0a3099
147139db4
154a48686
hex32e9fda

53387226 has 48 divisors (see below), whose sum is σ = 125080800. Its totient is φ = 16399584.

The previous prime is 53387221. The next prime is 53387233. The reversal of 53387226 is 62278335.

53387226 is a `hidden beast` number, since 53 + 387 + 226 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53387221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10545 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (2605850).

Almost surely, 253387226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53387226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62540400).

53387226 is an abundant number, since it is smaller than the sum of its proper divisors (71693574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53387226 is a wasteful number, since it uses less digits than its factorization.

53387226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283 (or 4280 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 53387226 is about 7306.6562804062. The cubic root of 53387226 is about 376.5411562233.

The spelling of 53387226 in words is "fifty-three million, three hundred eighty-seven thousand, two hundred twenty-six".

Divisors: 1 2 3 6 9 18 19 37 38 57 74 111 114 171 222 333 342 666 703 1406 2109 4218 4219 6327 8438 12654 12657 25314 37971 75942 80161 156103 160322 240483 312206 468309 480966 721449 936618 1404927 1442898 2809854 2965957 5931914 8897871 17795742 26693613 53387226