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42242015513 = 103340892561
BaseRepresentation
bin100111010101110100…
…100000000100011001
311001000220210201121002
4213111310200010121
51143002423444023
631223344554345
73023540131115
oct472564400431
9131026721532
1042242015513
1116a07575525
12822a9229b5
133ca2704c69
14208a264745
151173752b28
hex9d5d20119

42242015513 has 4 divisors (see below), whose sum is σ = 42282909108. Its totient is φ = 42201121920.

The previous prime is 42242015461. The next prime is 42242015521. The reversal of 42242015513 is 31551024224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35888650249 + 6353365264 = 189443^2 + 79708^2 .

It is a cyclic number.

It is not a de Polignac number, because 42242015513 - 210 = 42242014489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42242215513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20445248 + ... + 20447313.

It is an arithmetic number, because the mean of its divisors is an integer number (10570727277).

Almost surely, 242242015513 is an apocalyptic number.

It is an amenable number.

42242015513 is a deficient number, since it is larger than the sum of its proper divisors (40893595).

42242015513 is a wasteful number, since it uses less digits than its factorization.

42242015513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40893594.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 42242015513 its reverse (31551024224), we get a palindrome (73793039737).

The spelling of 42242015513 in words is "forty-two billion, two hundred forty-two million, fifteen thousand, five hundred thirteen".

Divisors: 1 1033 40892561 42242015513