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52412224 = 261767719
BaseRepresentation
bin1100011111101…
…1111101000000
310122121211001111
43013323331000
5101404142344
65111213104
71204332214
oct307737500
9118554044
1052412224
1127649097
1215677194
13ab21367
146d64944
154904834
hex31fbf40

52412224 has 56 divisors (see below), whose sum is σ = 111922560. Its totient is φ = 24262656.

The previous prime is 52412221. The next prime is 52412249. The reversal of 52412224 is 42221425.

It is a junction number, because it is equal to n+sod(n) for n = 52412195 and 52412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52412221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72537 + ... + 73255.

Almost surely, 252412224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52412224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55961280).

52412224 is an abundant number, since it is smaller than the sum of its proper divisors (59510336).

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

52412224 is a wasteful number, since it uses less digits than its factorization.

52412224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 805 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 52412224 is about 7239.6287197618. The cubic root of 52412224 is about 374.2348225527.

Adding to 52412224 its reverse (42221425), we get a palindrome (94633649).

The spelling of 52412224 in words is "fifty-two million, four hundred twelve thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 17 32 34 64 67 68 134 136 268 272 536 544 719 1072 1088 1139 1438 2144 2278 2876 4288 4556 5752 9112 11504 12223 18224 23008 24446 36448 46016 48173 48892 72896 96346 97784 192692 195568 385384 391136 770768 782272 818941 1541536 1637882 3083072 3275764 6551528 13103056 26206112 52412224