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11233131 = 3713231789
BaseRepresentation
bin101010110110…
…011101101011
3210010200221220
4222312131223
510333430011
61040433123
7164323440
oct52663553
923120856
1011233131
116382688
1239187a3
132433c30
1416c59c7
15ebd506
hexab676b

11233131 has 32 divisors (see below), whose sum is σ = 19246080. Its totient is φ = 5664384.

The previous prime is 11233111. The next prime is 11233133. The reversal of 11233131 is 13133211.

It is not a de Polignac number, because 11233131 - 25 = 11233099 is a prime.

It is a super-2 number, since 2×112331312 = 252366464126322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11233131.

It is not an unprimeable number, because it can be changed into a prime (11233133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5385 + ... + 7173.

It is an arithmetic number, because the mean of its divisors is an integer number (601440).

Almost surely, 211233131 is an apocalyptic number.

11233131 is a deficient number, since it is larger than the sum of its proper divisors (8012949).

11233131 is a wasteful number, since it uses less digits than its factorization.

11233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835.

The product of its digits is 54, while the sum is 15.

The square root of 11233131 is about 3351.5863408243. The cubic root of 11233131 is about 223.9581860195.

Adding to 11233131 its reverse (13133211), we get a palindrome (24366342).

The spelling of 11233131 in words is "eleven million, two hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 13 21 23 39 69 91 161 273 299 483 897 1789 2093 5367 6279 12523 23257 37569 41147 69771 123441 162799 288029 488397 534911 864087 1604733 3744377 11233131