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228830184018 = 23213728232
BaseRepresentation
bin1101010100011101010…
…1111000001001010010
3210212122120100210000200
43111013111320021102
512222121011342033
6253042333000030
722350424320432
oct3250725701122
9725576323020
10228830184018
1189056745167
1238422923016
131876a22a767
14b10b0162c2
155e44526013
hex3547578252

228830184018 has 54 divisors (see below), whose sum is σ = 500051712069. Its totient is φ = 75627958752.

The previous prime is 228830184017. The next prime is 228830184031. The reversal of 228830184018 is 810481038822.

It is a happy number.

228830184018 is a `hidden beast` number, since 228 + 8 + 3 + 0 + 18 + 401 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 227068451289 + 1761732729 = 476517^2 + 41973^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=338253.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228830184013) 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, 278043555 + ... + 278044377.

Almost surely, 2228830184018 is an apocalyptic number.

228830184018 is an abundant number, since it is smaller than the sum of its proper divisors (271221528051).

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

228830184018 is an frugal number, since it uses more digits than its factorization.

228830184018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 228830184018 in words is "two hundred twenty-eight billion, eight hundred thirty million, one hundred eighty-four thousand, eighteen".

Divisors: 1 2 3 6 9 18 137 274 411 822 823 1233 1646 2466 2469 4938 7407 14814 18769 37538 56307 112614 112751 168921 225502 337842 338253 676506 677329 1014759 1354658 2029518 2031987 4063974 6095961 12191922 15446887 30893774 46340661 92681322 92794073 139021983 185588146 278043966 278382219 556764438 835146657 1670293314 12712788001 25425576002 38138364003 76276728006 114415092009 228830184018