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54221430 = 2352337757
BaseRepresentation
bin1100111011010…
…1101001110110
310210000201211010
43032311221312
5102340041210
65214053050
71225605654
oct316655166
9123021733
1054221430
11286743aa
12161aa186
13b3059b3
1472b5dd4
154b60920
hex33b5a76

54221430 has 32 divisors (see below), whose sum is σ = 130706784. Its totient is φ = 14395136.

The previous prime is 54221429. The next prime is 54221471. The reversal of 54221430 is 3412245.

It is a junction number, because it is equal to n+sod(n) for n = 54221397 and 54221406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112 + ... + 10868.

It is an arithmetic number, because the mean of its divisors is an integer number (4084587).

Almost surely, 254221430 is an apocalyptic number.

54221430 is an abundant number, since it is smaller than the sum of its proper divisors (76485354).

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

54221430 is a wasteful number, since it uses less digits than its factorization.

54221430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 54221430 is about 7363.5202179392. The cubic root of 54221430 is about 378.4922480318.

Adding to 54221430 its reverse (3412245), we get a palindrome (57633675).

The spelling of 54221430 in words is "fifty-four million, two hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 233 466 699 1165 1398 2330 3495 6990 7757 15514 23271 38785 46542 77570 116355 232710 1807381 3614762 5422143 9036905 10844286 18073810 27110715 54221430