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50985291 = 3714291699
BaseRepresentation
bin1100001001111…
…1100101001011
310112221022200010
43002133211023
5101023012131
65020443003
71156240110
oct302374513
9115838603
1050985291
1126864005
12150a9463
13a741a16
146ab2907
154721b46
hex309f94b

50985291 has 16 divisors (see below), whose sum is σ = 77792000. Its totient is φ = 29096928.

The previous prime is 50985287. The next prime is 50985353. The reversal of 50985291 is 19258905.

It is not a de Polignac number, because 50985291 - 22 = 50985287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50985251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29160 + ... + 30858.

It is an arithmetic number, because the mean of its divisors is an integer number (4862000).

Almost surely, 250985291 is an apocalyptic number.

50985291 is a deficient number, since it is larger than the sum of its proper divisors (26806709).

50985291 is a wasteful number, since it uses less digits than its factorization.

50985291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 50985291 is about 7140.3985182901. The cubic root of 50985291 is about 370.8073216728.

The spelling of 50985291 in words is "fifty million, nine hundred eighty-five thousand, two hundred ninety-one".

Divisors: 1 3 7 21 1429 1699 4287 5097 10003 11893 30009 35679 2427871 7283613 16995097 50985291