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1112204431 = 1389961283
BaseRepresentation
bin100001001001010…
…1110010010001111
32212111210211122201
41002102232102033
54234211020211
6302210222331
736363403342
oct10222562217
92774724581
101112204431
115208a0718
122705849a7
13149564a40
14a79d8459
15679970c1
hex424ae48f

1112204431 has 8 divisors (see below), whose sum is σ = 1211217840. Its totient is φ = 1015113792.

The previous prime is 1112204389. The next prime is 1112204437. The reversal of 1112204431 is 1344022111.

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

It is a cyclic number.

It is not a de Polignac number, because 1112204431 - 29 = 1112203919 is a prime.

It is a super-2 number, since 2×11122044312 = 2473997392672067522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112204399 and 1112204408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112204437) 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, 479485 + ... + 481798.

It is an arithmetic number, because the mean of its divisors is an integer number (151402230).

Almost surely, 21112204431 is an apocalyptic number.

1112204431 is a deficient number, since it is larger than the sum of its proper divisors (99013409).

1112204431 is an equidigital number, since it uses as much as digits as its factorization.

1112204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961385.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1112204431 is about 33349.7290993495. The cubic root of 1112204431 is about 1036.0837771952.

Adding to 1112204431 its reverse (1344022111), we get a palindrome (2456226542).

The spelling of 1112204431 in words is "one billion, one hundred twelve million, two hundred four thousand, four hundred thirty-one".

Divisors: 1 13 89 1157 961283 12496679 85554187 1112204431