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12882272 = 2513173179
BaseRepresentation
bin110001001001…
…000101100000
3220020111011012
4301021011200
511244213042
61140040052
7214332434
oct61110540
926214135
1012882272
1172a9707
124393028
132890760
1419d49c4
1511e6e82
hexc49160

12882272 has 48 divisors (see below), whose sum is σ = 27624240. Its totient is φ = 5878272.

The previous prime is 12882271. The next prime is 12882283. The reversal of 12882272 is 27228821.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12882271) 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, 71879 + ... + 72057.

It is an arithmetic number, because the mean of its divisors is an integer number (575505).

Almost surely, 212882272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12882272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13812120).

12882272 is an abundant number, since it is smaller than the sum of its proper divisors (14741968).

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

12882272 is a wasteful number, since it uses less digits than its factorization.

12882272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 367 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 12882272 is about 3589.1882090523. The cubic root of 12882272 is about 234.4215257443.

The spelling of 12882272 in words is "twelve million, eight hundred eighty-two thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 173 179 208 346 358 416 692 716 1384 1432 2249 2327 2768 2864 4498 4654 5536 5728 8996 9308 17992 18616 30967 35984 37232 61934 71968 74464 123868 247736 402571 495472 805142 990944 1610284 3220568 6441136 12882272