Search a number
-
+
268021242 = 23288716787
BaseRepresentation
bin11111111100110…
…10110111111010
3200200022220000200
433332122313322
51022103134432
642332343030
76433100016
oct1776326772
9620286020
10268021242
11128322365
1275914a76
13436b2268
142784b546
15187e3a7c
hexff9adfa

268021242 has 24 divisors (see below), whose sum is σ = 581402016. Its totient is φ = 89234376.

The previous prime is 268021241. The next prime is 268021253. The reversal of 268021242 is 242120862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (268021241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7573 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (24225084).

Almost surely, 2268021242 is an apocalyptic number.

268021242 is an abundant number, since it is smaller than the sum of its proper divisors (313380774).

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

268021242 is a wasteful number, since it uses less digits than its factorization.

268021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17682 (or 17679 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 268021242 is about 16371.3543117239. The cubic root of 268021242 is about 644.7476063150.

The spelling of 268021242 in words is "two hundred sixty-eight million, twenty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 887 1774 2661 5322 7983 15966 16787 33574 50361 100722 151083 302166 14890069 29780138 44670207 89340414 134010621 268021242