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185114813 = 1320876823
BaseRepresentation
bin10110000100010…
…10000010111101
3110220022210210012
423002022002331
5334342133223
630211353005
74405310222
oct1302120275
9426283705
10185114813
1195546554
1251bb2765
132c474cc0
141a829949
15113b8c78
hexb08a0bd

185114813 has 8 divisors (see below), whose sum is σ = 199479168. Its totient is φ = 170768304.

The previous prime is 185114807. The next prime is 185114827. The reversal of 185114813 is 318411581.

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 185114813 - 214 = 185098429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 185114813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185114803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23720 + ... + 30542.

It is an arithmetic number, because the mean of its divisors is an integer number (24934896).

Almost surely, 2185114813 is an apocalyptic number.

185114813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

185114813 is a deficient number, since it is larger than the sum of its proper divisors (14364355).

185114813 is a wasteful number, since it uses less digits than its factorization.

185114813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923.

The product of its digits is 3840, while the sum is 32.

The square root of 185114813 is about 13605.6904639199. The cubic root of 185114813 is about 569.9197722316.

The spelling of 185114813 in words is "one hundred eighty-five million, one hundred fourteen thousand, eight hundred thirteen".

Divisors: 1 13 2087 6823 27131 88699 14239601 185114813