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50901225769 = 2256132
BaseRepresentation
bin101111011001111100…
…110001000100101001
311212101101122011222001
4233121330301010221
51313221203211034
635214513531001
73451244165062
oct573174610451
9155341564861
1050901225769
111a650462339
129a46873a61
134a526a5304
14266c2c9569
1514cda64a14
hexbd9f31129

50901225769 has 3 divisors (see below), whose sum is σ = 50901451383. Its totient is φ = 50901000156.

The previous prime is 50901225763. The next prime is 50901225827. The reversal of 50901225769 is 96752210905.

The square root of 50901225769 is 225613.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9524784025 + 41376441744 = 97595^2 + 203412^2 .

It is not a de Polignac number, because 50901225769 - 215 = 50901193001 is a prime.

It is a super-2 number, since 2×509012257692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50901225763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 112807 + ... + 338419.

It is an arithmetic number, because the mean of its divisors is an integer number (16967150461).

Almost surely, 250901225769 is an apocalyptic number.

50901225769 is the 225613-rd square number.

50901225769 is the 112807-th centered octagonal number.

It is an amenable number.

50901225769 is a deficient number, since it is larger than the sum of its proper divisors (225614).

50901225769 is an frugal number, since it uses more digits than its factorization.

50901225769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451226 (or 225613 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 50901225769 in words is "fifty billion, nine hundred one million, two hundred twenty-five thousand, seven hundred sixty-nine".

Divisors: 1 225613 50901225769