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3120040500013 = 15812991973087
BaseRepresentation
bin101101011001110000111…
…001111101101100101101
3102001021100222122111112001
4231121300321331230231
5402104320332000023
610345154332012301
7441262340446243
oct55316071755455
912037328574461
103120040500013
11aa3224583088
12424827301091
131982ac227578
14ab021782793
155625d0496ad
hex2d670e7db2d

3120040500013 has 4 divisors (see below), whose sum is σ = 3120044054400. Its totient is φ = 3120036945628.

The previous prime is 3120040500001. The next prime is 3120040500037. The reversal of 3120040500013 is 3100050400213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3120040500013 - 241 = 921017244461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120040500413) 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, 594756 + ... + 2567842.

It is an arithmetic number, because the mean of its divisors is an integer number (780011013600).

Almost surely, 23120040500013 is an apocalyptic number.

It is an amenable number.

3120040500013 is a deficient number, since it is larger than the sum of its proper divisors (3554387).

3120040500013 is a wasteful number, since it uses less digits than its factorization.

3120040500013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554386.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 3120040500013 its reverse (3100050400213), we get a palindrome (6220090900226).

The spelling of 3120040500013 in words is "three trillion, one hundred twenty billion, forty million, five hundred thousand, thirteen".

Divisors: 1 1581299 1973087 3120040500013