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2000013131 = 19105263849
BaseRepresentation
bin111011100110101…
…1100011101001011
312011101101012020102
41313031130131023
513044000410011
6530243120015
7100363555034
oct16715343513
95141335212
102000013131
11936a56516
1247997300b
1325b48032c
1414d89da8b
15ba8b673b
hex7735c74b

2000013131 has 4 divisors (see below), whose sum is σ = 2105277000. Its totient is φ = 1894749264.

The previous prime is 2000013121. The next prime is 2000013149. The reversal of 2000013131 is 1313100002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2000013131 is a prime.

It is a super-2 number, since 2×20000131312 = 8000105048344846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52631906 + ... + 52631943.

It is an arithmetic number, because the mean of its divisors is an integer number (526319250).

Almost surely, 22000013131 is an apocalyptic number.

2000013131 is a deficient number, since it is larger than the sum of its proper divisors (105263869).

2000013131 is a wasteful number, since it uses less digits than its factorization.

2000013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105263868.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2000013131 is about 44721.5063587979. The cubic root of 2000013131 is about 1259.9238072261.

Adding to 2000013131 its reverse (1313100002), we get a palindrome (3313113133).

The spelling of 2000013131 in words is "two billion, thirteen thousand, one hundred thirty-one".

Divisors: 1 19 105263849 2000013131