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228825402 = 23132933659
BaseRepresentation
bin11011010001110…
…01100100111010
3120221120112102220
431220321210322
5432034403102
634412304510
75445661311
oct1550714472
9527515386
10228825402
11108190a03
1264772136
133853a760
1422567278
15151501bc
hexda3993a

228825402 has 16 divisors (see below), whose sum is σ = 492854880. Its totient is φ = 70407792.

The previous prime is 228825397. The next prime is 228825451. The reversal of 228825402 is 204528822.

It is a super-2 number, since 2×2288254022 = 104722129200923208, which contains 22 as substring.

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, 1466752 + ... + 1466907.

It is an arithmetic number, because the mean of its divisors is an integer number (30803430).

Almost surely, 2228825402 is an apocalyptic number.

228825402 is an abundant number, since it is smaller than the sum of its proper divisors (264029478).

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

228825402 is a wasteful number, since it uses less digits than its factorization.

228825402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933677.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 228825402 is about 15126.9759701006. The cubic root of 228825402 is about 611.6477906336.

The spelling of 228825402 in words is "two hundred twenty-eight million, eight hundred twenty-five thousand, four hundred two".

Divisors: 1 2 3 6 13 26 39 78 2933659 5867318 8800977 17601954 38137567 76275134 114412701 228825402