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11430131 = 432271171
BaseRepresentation
bin101011100110…
…100011110011
3210111201012012
4223212203303
510411231011
61044553135
7166103666
oct53464363
923451165
1011430131
1164a7699
1239b27ab
1324a27bb
1417376dd
15100ba8b
hexae68f3

11430131 has 8 divisors (see below), whose sum is σ = 11757504. Its totient is φ = 11105640.

The previous prime is 11430101. The next prime is 11430157. The reversal of 11430131 is 13103411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11430131 is a prime.

It is a super-2 number, since 2×114301312 = 261295789354322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11430101) 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, 9176 + ... + 10346.

It is an arithmetic number, because the mean of its divisors is an integer number (1469688).

Almost surely, 211430131 is an apocalyptic number.

11430131 is a deficient number, since it is larger than the sum of its proper divisors (327373).

11430131 is a wasteful number, since it uses less digits than its factorization.

11430131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 11430131 is about 3380.8476747703. The cubic root of 11430131 is about 225.2598216628.

Adding to 11430131 its reverse (13103411), we get a palindrome (24533542).

The spelling of 11430131 in words is "eleven million, four hundred thirty thousand, one hundred thirty-one".

Divisors: 1 43 227 1171 9761 50353 265817 11430131