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229387880 = 2355734697
BaseRepresentation
bin11011010110000…
…10111001101000
3120222122010000102
431223002321220
5432210403010
634432324532
75453523221
oct1553027150
9528563012
10229387880
11108535567
12649a3748
13386a6797
1422672248
1515211ba5
hexdac2e68

229387880 has 16 divisors (see below), whose sum is σ = 516122820. Its totient is φ = 91755136.

The previous prime is 229387861. The next prime is 229387891. The reversal of 229387880 is 88783922.

229387880 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 2 ways, for example, as 218980804 + 10407076 = 14798^2 + 3226^2 .

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, 2867309 + ... + 2867388.

Almost surely, 2229387880 is an apocalyptic number.

229387880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229387880 is an abundant number, since it is smaller than the sum of its proper divisors (286734940).

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

229387880 is a wasteful number, since it uses less digits than its factorization.

229387880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734708 (or 5734704 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 229387880 is about 15145.5564440532. The cubic root of 229387880 is about 612.1485463955.

The spelling of 229387880 in words is "two hundred twenty-nine million, three hundred eighty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 5734697 11469394 22938788 28673485 45877576 57346970 114693940 229387880