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228912002 = 21117958129
BaseRepresentation
bin11011010010011…
…10101110000010
3120221201221020022
431221032232002
5432100141002
634414213442
75446501634
oct1551165602
9527657208
10228912002
1110823aa80
12647b4282
133856acb7
142258aa54
151516aba2
hexda4eb82

228912002 has 16 divisors (see below), whose sum is σ = 376682400. Its totient is φ = 103467840.

The previous prime is 228911989. The next prime is 228912071. The reversal of 228912002 is 200219822.

228912002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25127 + ... + 33002.

It is an arithmetic number, because the mean of its divisors is an integer number (23542650).

Almost surely, 2228912002 is an apocalyptic number.

228912002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228912002 is a deficient number, since it is larger than the sum of its proper divisors (147770398).

228912002 is a wasteful number, since it uses less digits than its factorization.

228912002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58321.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 228912002 is about 15129.8381352875. The cubic root of 228912002 is about 611.7249411853.

It can be divided in two parts, 2289 and 12002, that multiplied together give a triangular number (27472578 = T7412).

The spelling of 228912002 in words is "two hundred twenty-eight million, nine hundred twelve thousand, two".

Divisors: 1 2 11 22 179 358 1969 3938 58129 116258 639419 1278838 10405091 20810182 114456001 228912002