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228667450 = 25211415759
BaseRepresentation
bin11011010000100…
…11000000111010
3120221021111202211
431220103000322
5432014324300
634405045334
75444432644
oct1550230072
9527244684
10228667450
11108093270
12646b684a
13384b38ab
1422525894
151511d4ba
hexda1303a

228667450 has 24 divisors (see below), whose sum is σ = 463988160. Its totient is φ = 83151600.

The previous prime is 228667447. The next prime is 228667487. The reversal of 228667450 is 54766822.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 207330 + ... + 208429.

It is an arithmetic number, because the mean of its divisors is an integer number (19332840).

Almost surely, 2228667450 is an apocalyptic number.

228667450 is an abundant number, since it is smaller than the sum of its proper divisors (235320710).

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

228667450 is a wasteful number, since it uses less digits than its factorization.

228667450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415782 (or 415777 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 228667450 is about 15121.7541971823. The cubic root of 228667450 is about 611.5070235847.

The spelling of 228667450 in words is "two hundred twenty-eight million, six hundred sixty-seven thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 415759 831518 2078795 4157590 4573349 9146698 10393975 20787950 22866745 45733490 114333725 228667450