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229147900 = 22522291479
BaseRepresentation
bin11011010100010…
…00010011111100
3120222011220211021
431222020103330
5432130213100
634423233524
75451503452
oct1552102374
9528156737
10229147900
11108391233
12648a88a4
1338621497
142260c9d2
15151b5a1a
hexda884fc

229147900 has 18 divisors (see below), whose sum is σ = 497251160. Its totient is φ = 91659120.

The previous prime is 229147859. The next prime is 229147901. The reversal of 229147900 is 9741922.

It is a happy number.

229147900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229147901) 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, 1145640 + ... + 1145839.

Almost surely, 2229147900 is an apocalyptic number.

229147900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229147900 is an abundant number, since it is smaller than the sum of its proper divisors (268103260).

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

229147900 is a wasteful number, since it uses less digits than its factorization.

229147900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291493 (or 2291486 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 229147900 is about 15137.6319151973. The cubic root of 229147900 is about 611.9350002877.

The spelling of 229147900 in words is "two hundred twenty-nine million, one hundred forty-seven thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2291479 4582958 9165916 11457395 22914790 45829580 57286975 114573950 229147900