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2050368961 = 452812
BaseRepresentation
bin111101000110110…
…0010010111000001
312021220010112110011
41322031202113001
513144343301321
6535242304521
7101544564034
oct17215422701
95256115404
102050368961
1196241a603
124927b8141
13268a31694
1415644b01b
15c0011ae1
hex7a3625c1

2050368961 has 3 divisors (see below), whose sum is σ = 2050414243. Its totient is φ = 2050323680.

The previous prime is 2050368941. The next prime is 2050368977. The reversal of 2050368961 is 1698630502.

The square root of 2050368961 is 45281.

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., 1770810561 + 279558400 = 42081^2 + 16720^2 .

It is not a de Polignac number, because 2050368961 - 225 = 2016814529 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050368941) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22641 + ... + 67921.

Almost surely, 22050368961 is an apocalyptic number.

2050368961 is the 45281-st square number.

2050368961 is the 22641-st centered octagonal number.

It is an amenable number.

2050368961 is a deficient number, since it is larger than the sum of its proper divisors (45282).

2050368961 is an frugal number, since it uses more digits than its factorization.

2050368961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90562 (or 45281 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The cubic root of 2050368961 is about 1270.4103001905.

The spelling of 2050368961 in words is "two billion, fifty million, three hundred sixty-eight thousand, nine hundred sixty-one".

Divisors: 1 45281 2050368961