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11230047 = 3217292531
BaseRepresentation
bin101010110101…
…101101011111
3210010112201200
4222311231133
510333330142
61040410543
7164311443
oct52655537
923115650
1011230047
116380334
123916a53
1324326ca
1416c4823
15ebc64c
hexab5b5f

11230047 has 24 divisors (see below), whose sum is σ = 17774640. Its totient is φ = 6800640.

The previous prime is 11230031. The next prime is 11230069. The reversal of 11230047 is 74003211.

It is not a de Polignac number, because 11230047 - 24 = 11230031 is a prime.

It is a super-2 number, since 2×112300472 = 252227911244418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3172 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (740610).

Almost surely, 211230047 is an apocalyptic number.

11230047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11230047 is a deficient number, since it is larger than the sum of its proper divisors (6544593).

11230047 is a wasteful number, since it uses less digits than its factorization.

11230047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 11230047 is about 3351.1262285984. The cubic root of 11230047 is about 223.9376886098.

Adding to 11230047 its reverse (74003211), we get a palindrome (85233258).

The spelling of 11230047 in words is "eleven million, two hundred thirty thousand, forty-seven".

Divisors: 1 3 9 17 29 51 87 153 261 493 1479 2531 4437 7593 22779 43027 73399 129081 220197 387243 660591 1247783 3743349 11230047