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50168689 is a prime number
BaseRepresentation
bin1011111101100…
…0001101110001
310111101211111121
42333120031301
5100320344224
64551142241
71146266254
oct277301561
9114354447
1050168689
112635652a
1214974981
13a51711c
14693d09b
15460ebe4
hex2fd8371

50168689 has 2 divisors, whose sum is σ = 50168690. Its totient is φ = 50168688.

The previous prime is 50168663. The next prime is 50168731. The reversal of 50168689 is 98686105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 705600 = 7033^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 50168689 - 219 = 49644401 is a prime.

It is not a weakly prime, because it can be changed into another prime (50168639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25084344 + 25084345.

It is an arithmetic number, because the mean of its divisors is an integer number (25084345).

Almost surely, 250168689 is an apocalyptic number.

It is an amenable number.

50168689 is a deficient number, since it is larger than the sum of its proper divisors (1).

50168689 is an equidigital number, since it uses as much as digits as its factorization.

50168689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 50168689 is about 7082.9858816745. The cubic root of 50168689 is about 368.8169885385.

The spelling of 50168689 in words is "fifty million, one hundred sixty-eight thousand, six hundred eighty-nine".