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18159882413 = 155511167763
BaseRepresentation
bin10000111010011010…
…011101000010101101
31201212121000121110112
4100322122131002231
5244142412214123
612201553145405
71212006311411
oct207232350255
951777017415
1018159882413
117779864492
12362985b265
1319353ac66a
14c43b68d41
1571443ad78
hex43a69d0ad

18159882413 has 4 divisors (see below), whose sum is σ = 18161065728. Its totient is φ = 18158699100.

The previous prime is 18159882373. The next prime is 18159882439. The reversal of 18159882413 is 31428895181.

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.

It is a cyclic number.

It is not a de Polignac number, because 18159882413 - 214 = 18159866029 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 (18159882463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568331 + ... + 599432.

It is an arithmetic number, because the mean of its divisors is an integer number (4540266432).

Almost surely, 218159882413 is an apocalyptic number.

It is an amenable number.

18159882413 is a deficient number, since it is larger than the sum of its proper divisors (1183315).

18159882413 is a wasteful number, since it uses less digits than its factorization.

18159882413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183314.

The product of its digits is 552960, while the sum is 50.

The spelling of 18159882413 in words is "eighteen billion, one hundred fifty-nine million, eight hundred eighty-two thousand, four hundred thirteen".

Divisors: 1 15551 1167763 18159882413