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50994149 = 129739317
BaseRepresentation
bin1100001010000…
…1101111100101
310112221202211012
43002201233211
5101023303044
65020552005
71156304663
oct302415745
9115852735
1050994149
112686a728
12150b2605
13a745a6b
146ab5c33
15472459e
hex30a1be5

50994149 has 4 divisors (see below), whose sum is σ = 51034764. Its totient is φ = 50953536.

The previous prime is 50994143. The next prime is 50994179. The reversal of 50994149 is 94149905.

It is a happy number.

50994149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48205249 + 2788900 = 6943^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 50994149 - 28 = 50993893 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 (50994143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18362 + ... + 20955.

It is an arithmetic number, because the mean of its divisors is an integer number (12758691).

Almost surely, 250994149 is an apocalyptic number.

It is an amenable number.

50994149 is a deficient number, since it is larger than the sum of its proper divisors (40615).

50994149 is a wasteful number, since it uses less digits than its factorization.

50994149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40614.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 50994149 is about 7141.0187648542. The cubic root of 50994149 is about 370.8287946701.

The spelling of 50994149 in words is "fifty million, nine hundred ninety-four thousand, one hundred forty-nine".

Divisors: 1 1297 39317 50994149