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1111312130 = 25111131213
BaseRepresentation
bin100001000111101…
…0100011100000010
32212110010111122112
41002033110130002
54233443442010
6302135135322
736352666025
oct10217243402
92773114575
101111312130
11520341285
12270214542
13149311856
14a78451bc
156786ca05
hex423d4702

1111312130 has 8 divisors (see below), whose sum is σ = 2000361852. Its totient is φ = 444524848.

The previous prime is 1111312127. The next prime is 1111312157. The reversal of 1111312130 is 312131111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1102173601 + 9138529 = 33199^2 + 3023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55565597 + ... + 55565616.

Almost surely, 21111312130 is an apocalyptic number.

1111312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111312130 is a deficient number, since it is larger than the sum of its proper divisors (889049722).

1111312130 is a wasteful number, since it uses less digits than its factorization.

1111312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111131220.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1111312130 is about 33336.3484803000. The cubic root of 1111312130 is about 1035.8066261275.

Adding to 1111312130 its reverse (312131111), we get a palindrome (1423443241).

The spelling of 1111312130 in words is "one billion, one hundred eleven million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 111131213 222262426 555656065 1111312130