Search a number
-
+
61240050 = 2345215121
BaseRepresentation
bin1110100110011…
…1001011110010
311021020022120000
43221213023302
5111134140200
610024330430
71342350264
oct351471362
9137208500
1061240050
1131628613
1218613a16
13c8c2521
1481c1b34
15559a300
hex3a672f2

61240050 has 60 divisors (see below), whose sum is σ = 170167866. Its totient is φ = 16329600.

The previous prime is 61240027. The next prime is 61240051. The reversal of 61240050 is 5004216.

It is a happy number.

61240050 is a `hidden beast` number, since 612 + 4 + 0 + 0 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 36469521 + 24770529 = 6039^2 + 4977^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (61240051) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3511 + ... + 11610.

Almost surely, 261240050 is an apocalyptic number.

61240050 is an abundant number, since it is smaller than the sum of its proper divisors (108927816).

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

61240050 is a wasteful number, since it uses less digits than its factorization.

61240050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15145 (or 15131 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 61240050 is about 7825.6022132485. The cubic root of 61240050 is about 394.1654119205.

Adding to 61240050 its reverse (5004216), we get a palindrome (66244266).

The spelling of 61240050 in words is "sixty-one million, two hundred forty thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1350 2025 4050 15121 30242 45363 75605 90726 136089 151210 226815 272178 378025 408267 453630 680445 756050 816534 1134075 1224801 1360890 2041335 2268150 2449602 3402225 4082670 6124005 6804450 10206675 12248010 20413350 30620025 61240050