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11430331 = 111815741
BaseRepresentation
bin101011100110…
…100110111011
3210111201110121
4223212212323
510411232311
61044554111
7166104403
oct53464673
923451417
1011430331
1164a7860
1239b2937
1324a2913
141737803
15100bb71
hexae69bb

11430331 has 8 divisors (see below), whose sum is σ = 12540528. Its totient is φ = 10332000.

The previous prime is 11430329. The next prime is 11430337. The reversal of 11430331 is 13303411.

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 11430331 - 21 = 11430329 is a prime.

It is a super-2 number, since 2×114303312 = 261304933539122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11430337) 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, 880 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (1567566).

Almost surely, 211430331 is an apocalyptic number.

11430331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11430331 is a deficient number, since it is larger than the sum of its proper divisors (1110197).

11430331 is a wasteful number, since it uses less digits than its factorization.

11430331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 11430331 is about 3380.8772530218. The cubic root of 11430331 is about 225.2611354915.

Adding to 11430331 its reverse (13303411), we get a palindrome (24733742).

Subtracting 11430331 from its reverse (13303411), we obtain a triangular number (1873080 = T1935).

The spelling of 11430331 in words is "eleven million, four hundred thirty thousand, three hundred thirty-one".

Divisors: 1 11 181 1991 5741 63151 1039121 11430331