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2270678868 = 2232138145673
BaseRepresentation
bin1000011101010111…
…1100111101010100
312212020200102211100
42013111330331110
514122243210433
61013152310100
7110161311003
oct20725747524
95766612740
102270678868
11a65814707
12534542330
132a257a183
141777d8c3a
15d452db13
hex8757cf54

2270678868 has 36 divisors (see below), whose sum is σ = 5744053588. Its totient is φ = 756328320.

The previous prime is 2270678857. The next prime is 2270678881. The reversal of 2270678868 is 8688760722.

It can be written as a sum of positive squares in 2 ways, for example, as 1666109124 + 604569744 = 40818^2 + 24588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22706788682 = 10311965043163522848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26880 + ... + 72552.

Almost surely, 22270678868 is an apocalyptic number.

It is an amenable number.

2270678868 is an abundant number, since it is smaller than the sum of its proper divisors (3473374720).

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

2270678868 is a wasteful number, since it uses less digits than its factorization.

2270678868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47064 (or 47059 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The square root of 2270678868 is about 47651.6407692327. The cubic root of 2270678868 is about 1314.3728291590.

The spelling of 2270678868 in words is "two billion, two hundred seventy million, six hundred seventy-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1381 2762 4143 5524 8286 12429 16572 24858 45673 49716 91346 137019 182692 274038 411057 548076 822114 1644228 63074413 126148826 189223239 252297652 378446478 567669717 756892956 1135339434 2270678868