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50132261 = 109459929
BaseRepresentation
bin1011111100111…
…1010100100101
310111022222112102
42333033110211
5100313213021
64550301445
71146055124
oct277172445
9114288472
1050132261
1126331123
1214957885
13a50367a
14692dabb
15460400b
hex2fcf525

50132261 has 4 divisors (see below), whose sum is σ = 50592300. Its totient is φ = 49672224.

The previous prime is 50132237. The next prime is 50132293. The reversal of 50132261 is 16223105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16223105 = 53244621.

It can be written as a sum of positive squares in 2 ways, for example, as 44222500 + 5909761 = 6650^2 + 2431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50132261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50132161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229856 + ... + 230073.

It is an arithmetic number, because the mean of its divisors is an integer number (12648075).

Almost surely, 250132261 is an apocalyptic number.

It is an amenable number.

50132261 is a deficient number, since it is larger than the sum of its proper divisors (460039).

50132261 is a wasteful number, since it uses less digits than its factorization.

50132261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460038.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 50132261 is about 7080.4139003310. The cubic root of 50132261 is about 368.7276996569.

Adding to 50132261 its reverse (16223105), we get a palindrome (66355366).

The spelling of 50132261 in words is "fifty million, one hundred thirty-two thousand, two hundred sixty-one".

Divisors: 1 109 459929 50132261