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228667802 = 21110393991
BaseRepresentation
bin11011010000100…
…11000110011010
3120221021112020212
431220103012122
5432014332202
634405051122
75444433656
oct1550230632
9527245225
10228667802
11108093560
12646b6aa2
13384b3abc
1422525a66
151511d652
hexda1319a

228667802 has 8 divisors (see below), whose sum is σ = 374183712. Its totient is φ = 103939900.

The previous prime is 228667801. The next prime is 228667819. The reversal of 228667802 is 208766822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2286678022 = 104577927343022408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228667802.

It is not an unprimeable number, because it can be changed into a prime (228667801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5196974 + ... + 5197017.

It is an arithmetic number, because the mean of its divisors is an integer number (46772964).

Almost surely, 2228667802 is an apocalyptic number.

228667802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228667802 is a deficient number, since it is larger than the sum of its proper divisors (145515910).

228667802 is a wasteful number, since it uses less digits than its factorization.

228667802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394004.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 228667802 is about 15121.7658360391. The cubic root of 228667802 is about 611.5073373597.

The spelling of 228667802 in words is "two hundred twenty-eight million, six hundred sixty-seven thousand, eight hundred two".

Divisors: 1 2 11 22 10393991 20787982 114333901 228667802