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11803893713 = 17694346689
BaseRepresentation
bin10101111111001000…
…10001111111010001
31010110122002221002122
422333210101333101
5143133244044323
65231142224025
7565340304203
oct127744217721
933418087078
1011803893713
115007a99067
122355125015
1311616418c1
147dd970773
15491434ec8
hex2bf911fd1

11803893713 has 4 divisors (see below), whose sum is σ = 12498240420. Its totient is φ = 11109547008.

The previous prime is 11803893707. The next prime is 11803893737. The reversal of 11803893713 is 31739830811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31739830811 = 132441525447.

It can be written as a sum of positive squares in 2 ways, for example, as 10025416129 + 1778477584 = 100127^2 + 42172^2 .

It is a cyclic number.

It is not a de Polignac number, because 11803893713 - 218 = 11803631569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11803893743) 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, 347173328 + ... + 347173361.

It is an arithmetic number, because the mean of its divisors is an integer number (3124560105).

Almost surely, 211803893713 is an apocalyptic number.

It is an amenable number.

11803893713 is a deficient number, since it is larger than the sum of its proper divisors (694346707).

11803893713 is an equidigital number, since it uses as much as digits as its factorization.

11803893713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694346706.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 11803893713 in words is "eleven billion, eight hundred three million, eight hundred ninety-three thousand, seven hundred thirteen".

Divisors: 1 17 694346689 11803893713