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228886878 = 231117203999
BaseRepresentation
bin11011010010010…
…00100101011110
3120221200122202210
431221020211132
5432043340003
634413501250
75446335453
oct1551104536
9527618683
10228886878
11108223110
12647a1826
133855c72c
142258182a
1515163503
hexda4895e

228886878 has 32 divisors (see below), whose sum is σ = 528768000. Its totient is φ = 65279360.

The previous prime is 228886877. The next prime is 228886883. The reversal of 228886878 is 878688822.

228886878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228886877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100878 + ... + 103121.

It is an arithmetic number, because the mean of its divisors is an integer number (16524000).

Almost surely, 2228886878 is an apocalyptic number.

228886878 is an abundant number, since it is smaller than the sum of its proper divisors (299881122).

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

228886878 is a wasteful number, since it uses less digits than its factorization.

228886878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204032.

The product of its digits is 5505024, while the sum is 57.

The square root of 228886878 is about 15129.0078326373. The cubic root of 228886878 is about 611.7025606204.

The spelling of 228886878 in words is "two hundred twenty-eight million, eight hundred eighty-six thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 187 374 561 1122 203999 407998 611997 1223994 2243989 3467983 4487978 6731967 6935966 10403949 13463934 20807898 38147813 76295626 114443439 228886878