Search a number
-
+
228025528 = 23223127817
BaseRepresentation
bin11011001011101…
…10010010111000
3120220001220012221
431211312102320
5431333304103
634343213424
75436120313
oct1545662270
9526056187
10228025528
11107794a55
1264447274
133831a663
14223d997a
15150431bd
hexd9764b8

228025528 has 16 divisors (see below), whose sum is σ = 429468480. Its totient is φ = 113500608.

The previous prime is 228025507. The next prime is 228025531. The reversal of 228025528 is 825520822.

It is a junction number, because it is equal to n+sod(n) for n = 228025493 and 228025502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62125 + ... + 65692.

It is an arithmetic number, because the mean of its divisors is an integer number (26841780).

Almost surely, 2228025528 is an apocalyptic number.

It is an amenable number.

228025528 is a deficient number, since it is larger than the sum of its proper divisors (201442952).

228025528 is a wasteful number, since it uses less digits than its factorization.

228025528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128046 (or 128042 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 228025528 is about 15100.5141634317. The cubic root of 228025528 is about 610.9342737946.

The spelling of 228025528 in words is "two hundred twenty-eight million, twenty-five thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 223 446 892 1784 127817 255634 511268 1022536 28503191 57006382 114012764 228025528