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50145445331 = 199612512171
BaseRepresentation
bin101110101100111001…
…101100010111010011
311210102201111120002222
4232230321230113103
51310144213222311
635011514531255
73423436152422
oct565471542723
9153381446088
1050145445331
111a2a2884303
129875736b2b
134961c35757
1425d9b912b9
151487524adb
hexbace6c5d3

50145445331 has 4 divisors (see below), whose sum is σ = 50147977464. Its totient is φ = 50142913200.

The previous prime is 50145445327. The next prime is 50145445333. The reversal of 50145445331 is 13354454105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13354454105 = 52670890821.

It is a cyclic number.

It is not a de Polignac number, because 50145445331 - 22 = 50145445327 is a prime.

It is a super-2 number, since 2×501454453312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50145445291 and 50145445300.

It is not an unprimeable number, because it can be changed into a prime (50145445333) 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, 1236125 + ... + 1276046.

It is an arithmetic number, because the mean of its divisors is an integer number (12536994366).

Almost surely, 250145445331 is an apocalyptic number.

50145445331 is a deficient number, since it is larger than the sum of its proper divisors (2532133).

50145445331 is a wasteful number, since it uses less digits than its factorization.

50145445331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532132.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 50145445331 its reverse (13354454105), we get a palindrome (63499899436).

The spelling of 50145445331 in words is "fifty billion, one hundred forty-five million, four hundred forty-five thousand, three hundred thirty-one".

Divisors: 1 19961 2512171 50145445331