Search a number
-
+
12890896 = 241783571
BaseRepresentation
bin110001001011…
…001100010000
3220020220222121
4301023030100
511300002041
61140144024
7214366534
oct61131420
926226877
1012890896
117305137
124398014
132894665
1419d7bc4
1511e97d1
hexc4b310

12890896 has 40 divisors (see below), whose sum is σ = 26810784. Its totient is φ = 5982720.

The previous prime is 12890893. The next prime is 12890903. The reversal of 12890896 is 69809821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12890893) 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, 22291 + ... + 22861.

Almost surely, 212890896 is an apocalyptic number.

12890896 is a gapful number since it is divisible by the number (16) 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 12890896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13405392).

12890896 is an abundant number, since it is smaller than the sum of its proper divisors (13919888).

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

12890896 is a wasteful number, since it uses less digits than its factorization.

12890896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 12890896 is about 3590.3893939237. The cubic root of 12890896 is about 234.4738250146.

The spelling of 12890896 in words is "twelve million, eight hundred ninety thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 17 34 68 83 136 166 272 332 571 664 1142 1328 1411 2284 2822 4568 5644 9136 9707 11288 19414 22576 38828 47393 77656 94786 155312 189572 379144 758288 805681 1611362 3222724 6445448 12890896