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228250900 = 22522282509
BaseRepresentation
bin11011001101011…
…01010100010100
3120220111100101001
431212231110110
5431413012100
634352113044
75441046343
oct1546552424
9526440331
10228250900
11107929309
1264535784
1338399107
1422457b5a
1515089d6a
hexd9ad514

228250900 has 18 divisors (see below), whose sum is σ = 495304670. Its totient is φ = 91300320.

The previous prime is 228250849. The next prime is 228250901. The reversal of 228250900 is 9052822.

228250900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 44702596 + 183548304 = 6686^2 + 13548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228250901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1141155 + ... + 1141354.

Almost surely, 2228250900 is an apocalyptic number.

228250900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228250900 is an abundant number, since it is smaller than the sum of its proper divisors (267053770).

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

228250900 is a wasteful number, since it uses less digits than its factorization.

228250900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282523 (or 2282516 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 228250900 is about 15107.9747153614. The cubic root of 228250900 is about 611.1354824685.

The spelling of 228250900 in words is "two hundred twenty-eight million, two hundred fifty thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2282509 4565018 9130036 11412545 22825090 45650180 57062725 114125450 228250900