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14825386818 = 23211226092
BaseRepresentation
bin11011100111010100…
…10111001101000010
31102021012120200102200
431303222113031002
5220330244334233
610451035254030
71033246465044
oct156352271502
942235520380
1014825386818
1163185a9600
122a58baa316
131523610048
14a08d6da94
155bb822313
hex373a97342

14825386818 has 54 divisors (see below), whose sum is σ = 35320829817. Its totient is φ = 4490819520.

The previous prime is 14825386813. The next prime is 14825386831. The reversal of 14825386818 is 81868352841.

14825386818 is a `hidden beast` number, since 1 + 48 + 2 + 538 + 68 + 1 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14819897169 + 5489649 = 121737^2 + 2343^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=86097.

It is not an unprimeable number, because it can be changed into a prime (14825386811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5681098 + ... + 5683706.

Almost surely, 214825386818 is an apocalyptic number.

14825386818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14825386818

14825386818 is an abundant number, since it is smaller than the sum of its proper divisors (20495442999).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14825386818 is an equidigital number, since it uses as much as digits as its factorization.

14825386818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248 (or 2625 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The spelling of 14825386818 in words is "fourteen billion, eight hundred twenty-five million, three hundred eighty-six thousand, eight hundred eighteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 726 1089 2178 2609 5218 7827 15654 23481 28699 46962 57398 86097 172194 258291 315689 516582 631378 947067 1894134 2841201 5682402 6806881 13613762 20420643 40841286 61261929 74875691 122523858 149751382 224627073 449254146 673881219 823632601 1347762438 1647265202 2470897803 4941795606 7412693409 14825386818