Search a number
-
+
12808332 = 22322331499
BaseRepresentation
bin110000110111…
…000010001100
3220002201201200
4300313002030
511234331312
61134305500
7213604035
oct60670214
926081650
1012808332
1172590a9
124358290
132865bc4
1419b5a8c
1511d00dc
hexc3708c

12808332 has 72 divisors (see below), whose sum is σ = 34944000. Its totient is φ = 3944160.

The previous prime is 12808321. The next prime is 12808357. The reversal of 12808332 is 23380821.

It is a junction number, because it is equal to n+sod(n) for n = 12808296 and 12808305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25419 + ... + 25917.

Almost surely, 212808332 is an apocalyptic number.

12808332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12808332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17472000).

12808332 is an abundant number, since it is smaller than the sum of its proper divisors (22135668).

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

12808332 is a wasteful number, since it uses less digits than its factorization.

12808332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12808332 is about 3578.8730069674. The cubic root of 12808332 is about 233.9721641226.

The spelling of 12808332 in words is "twelve million, eight hundred eight thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 23 31 36 46 62 69 92 93 124 138 186 207 276 279 372 414 499 558 713 828 998 1116 1426 1497 1996 2139 2852 2994 4278 4491 5988 6417 8556 8982 11477 12834 15469 17964 22954 25668 30938 34431 45908 46407 61876 68862 92814 103293 137724 139221 185628 206586 278442 355787 413172 556884 711574 1067361 1423148 2134722 3202083 4269444 6404166 12808332