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52372450 = 25213197409
BaseRepresentation
bin1100011111001…
…0001111100010
310122112210111101
43013302033202
5101401404300
65110305014
71204105234
oct307621742
9118483441
1052372450
1127621219
121565816a
13ab09220
146d54254
1548e7b6a
hex31f23e2

52372450 has 48 divisors (see below), whose sum is σ = 105696360. Its totient is φ = 19192320.

The previous prime is 52372447. The next prime is 52372451. The reversal of 52372450 is 5427325.

It can be written as a sum of positive squares in 12 ways, for example, as 17715681 + 34656769 = 4209^2 + 5887^2 .

It is not an unprimeable number, because it can be changed into a prime (52372451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127846 + ... + 128254.

Almost surely, 252372450 is an apocalyptic number.

52372450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52372450 is an abundant number, since it is smaller than the sum of its proper divisors (53323910).

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

52372450 is a wasteful number, since it uses less digits than its factorization.

52372450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 52372450 is about 7236.8812343440. The cubic root of 52372450 is about 374.1401335566.

Adding to 52372450 its reverse (5427325), we get a palindrome (57799775).

The spelling of 52372450 in words is "fifty-two million, three hundred seventy-two thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 197 325 394 409 650 818 985 1970 2045 2561 4090 4925 5122 5317 9850 10225 10634 12805 20450 25610 26585 53170 64025 80573 128050 132925 161146 265850 402865 805730 1047449 2014325 2094898 4028650 5237245 10474490 26186225 52372450