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11111312 = 24694457
BaseRepresentation
bin101010011000…
…101110010000
3202220111212002
4222120232100
510321030222
61034053132
7163305332
oct52305620
922814762
1011111312
1162aa103
12387a1a8
1323c0654
141693452
15e97392
hexa98b90

11111312 has 10 divisors (see below), whose sum is σ = 21528198. Its totient is φ = 5555648.

The previous prime is 11111311. The next prime is 11111327. The reversal of 11111312 is 21311111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9709456 + 1401856 = 3116^2 + 1184^2 .

It is a super-2 number, since 2×111113122 = 246922508722688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111293 and 11111302.

It is not an unprimeable number, because it can be changed into a prime (11111311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347213 + ... + 347244.

Almost surely, 211111312 is an apocalyptic number.

It is an amenable number.

11111312 is a deficient number, since it is larger than the sum of its proper divisors (10416886).

11111312 is an equidigital number, since it uses as much as digits as its factorization.

11111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694465 (or 694459 counting only the distinct ones).

The product of its digits is 6, while the sum is 11.

The square root of 11111312 is about 3333.3634665305. The cubic root of 11111312 is about 223.1456615024.

Adding to 11111312 its reverse (21311111), we get a palindrome (32422423).

The spelling of 11111312 in words is "eleven million, one hundred eleven thousand, three hundred twelve".