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50607643 = 129739019
BaseRepresentation
bin1100000100001…
…1011000011011
310112020010122011
43001003120123
5100423421033
65004410351
71153105102
oct301033033
9115203564
1050607643
11266262a9
1214b469b7
13a63bb68
146a15039
154699ccd
hex304361b

50607643 has 4 divisors (see below), whose sum is σ = 50647960. Its totient is φ = 50567328.

The previous prime is 50607617. The next prime is 50607649. The reversal of 50607643 is 34670605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34670605 = 56934121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50607643 is a prime.

It is a super-2 number, since 2×506076432 = 5122267060030898, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (50607649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18213 + ... + 20806.

It is an arithmetic number, because the mean of its divisors is an integer number (12661990).

Almost surely, 250607643 is an apocalyptic number.

50607643 is a deficient number, since it is larger than the sum of its proper divisors (40317).

50607643 is a wasteful number, since it uses less digits than its factorization.

50607643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40316.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 50607643 is about 7113.9049051839. The cubic root of 50607643 is about 369.8895287437.

The spelling of 50607643 in words is "fifty million, six hundred seven thousand, six hundred forty-three".

Divisors: 1 1297 39019 50607643