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11812372 = 221113107193
BaseRepresentation
bin101101000011…
…111000010100
3211020010112021
4231003320110
511010443442
61101102524
7202255255
oct55037024
924203467
1011812372
1167388a0
123b57a44
1325a7790
1417d6b2c
151084e67
hexb43e14

11812372 has 48 divisors (see below), whose sum is σ = 24639552. Its totient is φ = 4884480.

The previous prime is 11812343. The next prime is 11812379. The reversal of 11812372 is 27321811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11812379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61108 + ... + 61300.

It is an arithmetic number, because the mean of its divisors is an integer number (513324).

Almost surely, 211812372 is an apocalyptic number.

It is an amenable number.

11812372 is an abundant number, since it is smaller than the sum of its proper divisors (12827180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11812372 is a wasteful number, since it uses less digits than its factorization.

11812372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 11812372 is about 3436.9131499065. The cubic root of 11812372 is about 227.7433502774.

It can be divided in two parts, 1181 and 2372, that added together give a palindrome (3553).

The spelling of 11812372 in words is "eleven million, eight hundred twelve thousand, three hundred seventy-two".

Divisors: 1 2 4 11 13 22 26 44 52 107 143 193 214 286 386 428 572 772 1177 1391 2123 2354 2509 2782 4246 4708 5018 5564 8492 10036 15301 20651 27599 30602 41302 55198 61204 82604 110396 227161 268463 454322 536926 908644 1073852 2953093 5906186 11812372