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111431244 = 22319946663
BaseRepresentation
bin1101010010001…
…00111001001100
321202200021221010
412221010321030
5212011244434
615020205220
72522102301
oct651047114
9252607833
10111431244
1157999a41
1231399810
131a116962
1410b290a8
159bb19e9
hex6a44e4c

111431244 has 24 divisors (see below), whose sum is σ = 261318400. Its totient is φ = 36956304.

The previous prime is 111431233. The next prime is 111431249. The reversal of 111431244 is 442134111.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 111431244.

It is not an unprimeable number, because it can be changed into a prime (111431249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20944 + ... + 25719.

Almost surely, 2111431244 is an apocalyptic number.

It is an amenable number.

111431244 is an abundant number, since it is smaller than the sum of its proper divisors (149887156).

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

111431244 is a wasteful number, since it uses less digits than its factorization.

111431244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46869 (or 46867 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 111431244 is about 10556.0998479552. The cubic root of 111431244 is about 481.2111255719.

Adding to 111431244 its reverse (442134111), we get a palindrome (553565355).

The spelling of 111431244 in words is "one hundred eleven million, four hundred thirty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 199 398 597 796 1194 2388 46663 93326 139989 186652 279978 559956 9285937 18571874 27857811 37143748 55715622 111431244