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229684872 = 23329331997
BaseRepresentation
bin11011011000010…
…11011010001000
3121000012012102010
431230023122020
5432244403442
634442535520
75456201124
oct1554133210
9530165363
10229684872
1110871870a
1264b075a0
133877ba11
142270c584
151526eb9c
hexdb0b688

229684872 has 64 divisors (see below), whose sum is σ = 596404800. Its totient is φ = 73624320.

The previous prime is 229684867. The next prime is 229684879. The reversal of 229684872 is 278486922.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (229684879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229878 + ... + 230874.

It is an arithmetic number, because the mean of its divisors is an integer number (9318825).

Almost surely, 2229684872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229684872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298202400).

229684872 is an abundant number, since it is smaller than the sum of its proper divisors (366719928).

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

229684872 is a wasteful number, since it uses less digits than its factorization.

229684872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1362 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 229684872 is about 15155.3578644650. The cubic root of 229684872 is about 612.4126184937.

The spelling of 229684872 in words is "two hundred twenty-nine million, six hundred eighty-four thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 232 331 348 662 696 993 997 1324 1986 1994 2648 2991 3972 3988 5982 7944 7976 9599 11964 19198 23928 28797 28913 38396 57594 57826 76792 86739 115188 115652 173478 230376 231304 330007 346956 660014 693912 990021 1320028 1980042 2640056 3960084 7920168 9570203 19140406 28710609 38280812 57421218 76561624 114842436 229684872