Search a number
-
+
12796400 = 245231991
BaseRepresentation
bin110000110100…
…000111110000
3220002010100202
4300310013300
511233441100
61134134332
7213524201
oct60640760
926063322
1012796400
117250141
1243513a8
132860646
1419b15a8
1511cb7d5
hexc341f0

12796400 has 30 divisors (see below), whose sum is σ = 30744312. Its totient is φ = 5118400.

The previous prime is 12796391. The next prime is 12796403. The reversal of 12796400 is 469721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12796403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15596 + ... + 16395.

Almost surely, 212796400 is an apocalyptic number.

12796400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12796400 is an abundant number, since it is smaller than the sum of its proper divisors (17947912).

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

12796400 is a wasteful number, since it uses less digits than its factorization.

12796400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32009 (or 31998 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 12796400 is about 3577.2056133245. The cubic root of 12796400 is about 233.8994868677.

It can be divided in two parts, 12796 and 400, that multiplied together give a triangular number (5118400 = T3199).

The spelling of 12796400 in words is "twelve million, seven hundred ninety-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 31991 63982 127964 159955 255928 319910 511856 639820 799775 1279640 1599550 2559280 3199100 6398200 12796400