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50953381 = 149569601
BaseRepresentation
bin1100001001011…
…1110010100101
310112212200220021
43002113302211
5101021002011
65020035141
71156045063
oct302276245
9115780807
1050953381
1126842036
1215092ab1
13a73033b
146aa5033
154717471
hex3097ca5

50953381 has 8 divisors (see below), whose sum is σ = 51471000. Its totient is φ = 50438400.

The previous prime is 50953337. The next prime is 50953391. The reversal of 50953381 is 18335905.

50953381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1602756 + 49350625 = 1266^2 + 7025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50953381 - 211 = 50951333 is a prime.

It is a super-2 number, since 2×509533812 = 5192494070662322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50953321) 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 7 ways as a sum of consecutive naturals, for example, 84481 + ... + 85081.

It is an arithmetic number, because the mean of its divisors is an integer number (6433875).

Almost surely, 250953381 is an apocalyptic number.

It is an amenable number.

50953381 is a deficient number, since it is larger than the sum of its proper divisors (517619).

50953381 is a wasteful number, since it uses less digits than its factorization.

50953381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 50953381 is about 7138.1636994398. The cubic root of 50953381 is about 370.7299468667.

The spelling of 50953381 in words is "fifty million, nine hundred fifty-three thousand, three hundred eighty-one".

Divisors: 1 149 569 601 84781 89549 341969 50953381