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52228120 = 2357226647
BaseRepresentation
bin1100011100111…
…1000000011000
310122021110111211
43013033000120
5101332244440
65103232504
71202634400
oct307170030
9118243454
1052228120
112753283a
12155a8734
13aa88619
146d17800
1548b9eea
hex31cf018

52228120 has 48 divisors (see below), whose sum is σ = 136704240. Its totient is φ = 17906112.

The previous prime is 52228109. The next prime is 52228123. The reversal of 52228120 is 2182225.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 52228091 and 52228100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52228123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11364 + ... + 15283.

It is an arithmetic number, because the mean of its divisors is an integer number (2848005).

Almost surely, 252228120 is an apocalyptic number.

It is an amenable number.

52228120 is an abundant number, since it is smaller than the sum of its proper divisors (84476120).

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

52228120 is a wasteful number, since it uses less digits than its factorization.

52228120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26672 (or 26661 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52228120 is about 7226.9025176766. The cubic root of 52228120 is about 373.7961274597.

The spelling of 52228120 in words is "fifty-two million, two hundred twenty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 26647 53294 106588 133235 186529 213176 266470 373058 532940 746116 932645 1065880 1305703 1492232 1865290 2611406 3730580 5222812 6528515 7461160 10445624 13057030 26114060 52228120