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1102400305 = 5220480061
BaseRepresentation
bin100000110110101…
…0100101100110001
32211211100201220221
41001231110230301
54224203302210
6301220133041
736214151026
oct10155245461
92754321827
101102400305
11516304736
12269237181
13147511396
14a65a554d
1566bac1da
hex41b54b31

1102400305 has 4 divisors (see below), whose sum is σ = 1322880372. Its totient is φ = 881920240.

The previous prime is 1102400297. The next prime is 1102400317. The reversal of 1102400305 is 5030042011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5030042011 = 24889202099.

It can be written as a sum of positive squares in 2 ways, for example, as 289238049 + 813162256 = 17007^2 + 28516^2 .

It is not a de Polignac number, because 1102400305 - 23 = 1102400297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110240026 + ... + 110240035.

It is an arithmetic number, because the mean of its divisors is an integer number (330720093).

Almost surely, 21102400305 is an apocalyptic number.

It is an amenable number.

1102400305 is a deficient number, since it is larger than the sum of its proper divisors (220480067).

1102400305 is an equidigital number, since it uses as much as digits as its factorization.

1102400305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220480066.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1102400305 is about 33202.4141441552. The cubic root of 1102400305 is about 1033.0304145619.

Adding to 1102400305 its reverse (5030042011), we get a palindrome (6132442316).

The spelling of 1102400305 in words is "one billion, one hundred two million, four hundred thousand, three hundred five".

Divisors: 1 5 220480061 1102400305