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72240050 = 2521444801
BaseRepresentation
bin1000100111001…
…00101110110010
312000221011201102
410103210232302
5121443140200
611100204402
71535013251
oct423445662
9160834642
1072240050
1137861023
1220239702
1311c742bc
149846798
15651e6d5
hex44e4bb2

72240050 has 12 divisors (see below), whose sum is σ = 134366586. Its totient is φ = 28896000.

The previous prime is 72240037. The next prime is 72240101. The reversal of 72240050 is 5004227.

It can be written as a sum of positive squares in 3 ways, for example, as 46362481 + 25877569 = 6809^2 + 5087^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722351 + ... + 722450.

Almost surely, 272240050 is an apocalyptic number.

72240050 is a deficient number, since it is larger than the sum of its proper divisors (62126536).

72240050 is a wasteful number, since it uses less digits than its factorization.

72240050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444813 (or 1444808 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 72240050 is about 8499.4146857298. The cubic root of 72240050 is about 416.4785888948.

Adding to 72240050 its reverse (5004227), we get a palindrome (77244277).

The spelling of 72240050 in words is "seventy-two million, two hundred forty thousand, fifty".

Divisors: 1 2 5 10 25 50 1444801 2889602 7224005 14448010 36120025 72240050