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2203995729 = 31356512711
BaseRepresentation
bin1000001101011110…
…0100111001010001
312200121012120202110
42003113210321101
514003210330404
61002411135533
7105421440345
oct20327447121
95617176673
102203995729
11a31109681
125161445a9
132918002b0
1416c9db625
15cd75ab89
hex835e4e51

2203995729 has 8 divisors (see below), whose sum is σ = 3164711872. Its totient is φ = 1356305040.

The previous prime is 2203995707. The next prime is 2203995767. The reversal of 2203995729 is 9275993022.

It is a happy number.

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

It is not a de Polignac number, because 2203995729 - 27 = 2203995601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203995029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28256317 + ... + 28256394.

It is an arithmetic number, because the mean of its divisors is an integer number (395588984).

Almost surely, 22203995729 is an apocalyptic number.

It is an amenable number.

2203995729 is a deficient number, since it is larger than the sum of its proper divisors (960716143).

2203995729 is a wasteful number, since it uses less digits than its factorization.

2203995729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56512727.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 2203995729 is about 46946.7328895207. The cubic root of 2203995729 is about 1301.3783662321.

It can be divided in two parts, 220399 and 5729, that added together give a triangular number (226128 = T672).

The spelling of 2203995729 in words is "two billion, two hundred three million, nine hundred ninety-five thousand, seven hundred twenty-nine".

Divisors: 1 3 13 39 56512711 169538133 734665243 2203995729