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2050045405 = 52111943171
BaseRepresentation
bin111101000110001…
…0011010111011101
312021212112002121121
41322030103113131
513144302423110
6535231330541
7101542045522
oct17214232735
95255462547
102050045405
11962219501
12492680a51
1326894a325
141563a5149
15bee9acda
hex7a3135dd

2050045405 has 8 divisors (see below), whose sum is σ = 2471714784. Its totient is φ = 1632262800.

The previous prime is 2050045391. The next prime is 2050045427. The reversal of 2050045405 is 5045400502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2050045405 - 25 = 2050045373 is a prime.

It is a super-2 number, since 2×20500454052 = 8405372325123228050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2050045405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970531 + ... + 972640.

It is an arithmetic number, because the mean of its divisors is an integer number (308964348).

Almost surely, 22050045405 is an apocalyptic number.

It is an amenable number.

2050045405 is a deficient number, since it is larger than the sum of its proper divisors (421669379).

2050045405 is a wasteful number, since it uses less digits than its factorization.

2050045405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943387.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2050045405 is about 45277.4271022548. The cubic root of 2050045405 is about 1270.3434714869.

Adding to 2050045405 its reverse (5045400502), we get a palindrome (7095445907).

The spelling of 2050045405 in words is "two billion, fifty million, forty-five thousand, four hundred five".

Divisors: 1 5 211 1055 1943171 9715855 410009081 2050045405