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209233068 = 223112336803
BaseRepresentation
bin11000111100010…
…10010010101100
3112120201010210220
430132022102230
5412030424233
632432331340
75120310642
oct1436122254
9476633726
10209233068
11a81199a0
125a0a3b50
133446aa65
141db07192
151357eeb3
hexc78a4ac

209233068 has 48 divisors (see below), whose sum is σ = 534957696. Its totient is φ = 63122560.

The previous prime is 209233061. The next prime is 209233081. The reversal of 209233068 is 860332902.

209233068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (209233061) 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, 27355 + ... + 34157.

It is an arithmetic number, because the mean of its divisors is an integer number (11144952).

Almost surely, 2209233068 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 209233068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267478848).

209233068 is an abundant number, since it is smaller than the sum of its proper divisors (325724628).

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

209233068 is a wasteful number, since it uses less digits than its factorization.

209233068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7054 (or 7052 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 209233068 is about 14464.8908741131. The cubic root of 209233068 is about 593.6677278730.

The spelling of 209233068 in words is "two hundred nine million, two hundred thirty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 233 466 699 932 1398 2563 2796 5126 6803 7689 10252 13606 15378 20409 27212 30756 40818 74833 81636 149666 224499 299332 448998 897996 1585099 3170198 4755297 6340396 9510594 17436089 19021188 34872178 52308267 69744356 104616534 209233068