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1113242380 = 22555662119
BaseRepresentation
bin100001001011010…
…1011101100001100
32212120202120110021
41002112223230030
54234442224010
6302244351524
736405255415
oct10226535414
92776676407
101113242380
1152143a528
122709a55a4
13149839303
14a7bc880c
1567aee8da
hex425abb0c

1113242380 has 12 divisors (see below), whose sum is σ = 2337809040. Its totient is φ = 445296944.

The previous prime is 1113242363. The next prime is 1113242387. The reversal of 1113242380 is 832423111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1113242387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27831040 + ... + 27831079.

It is an arithmetic number, because the mean of its divisors is an integer number (194817420).

Almost surely, 21113242380 is an apocalyptic number.

1113242380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113242380 is an abundant number, since it is smaller than the sum of its proper divisors (1224566660).

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

1113242380 is a wasteful number, since it uses less digits than its factorization.

1113242380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55662128 (or 55662126 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1113242380 is about 33365.2870510655. The cubic root of 1113242380 is about 1036.4059804788.

Adding to 1113242380 its reverse (832423111), we get a palindrome (1945665491).

The spelling of 1113242380 in words is "one billion, one hundred thirteen million, two hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 55662119 111324238 222648476 278310595 556621190 1113242380