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18133129045 = 523157679383
BaseRepresentation
bin10000111000110100…
…011001011101010101
31201210201200101202001
4100320310121131111
5244114040112140
612155155515301
71211233024303
oct207064313525
951721611661
1018133129045
117765751269
1236208b8b31
13192c9a3375
14c403a3273
15711e03e9a
hex438d19755

18133129045 has 8 divisors (see below), whose sum is σ = 22705831296. Its totient is φ = 13875785616.

The previous prime is 18133128943. The next prime is 18133129061. The reversal of 18133129045 is 54092133181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18133129045 - 223 = 18124740437 is a prime.

It is a super-2 number, since 2×181331290452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18133128995 and 18133129013.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 78839577 + ... + 78839806.

It is an arithmetic number, because the mean of its divisors is an integer number (2838228912).

Almost surely, 218133129045 is an apocalyptic number.

It is an amenable number.

18133129045 is a deficient number, since it is larger than the sum of its proper divisors (4572702251).

18133129045 is a wasteful number, since it uses less digits than its factorization.

18133129045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157679411.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 18133129045 in words is "eighteen billion, one hundred thirty-three million, one hundred twenty-nine thousand, forty-five".

Divisors: 1 5 23 115 157679383 788396915 3626625809 18133129045