Search a number
-
+
12538700 = 2252125387
BaseRepresentation
bin101111110101…
…001101001100
3212121000212022
4233311031030
511202214300
61124425312
7211401656
oct57651514
925530768
1012538700
117094569
124248238
1327a0265
1419456d6
15117a285
hexbf534c

12538700 has 18 divisors (see below), whose sum is σ = 27209196. Its totient is φ = 5015440.

The previous prime is 12538679. The next prime is 12538723. The reversal of 12538700 is 783521.

It is a self number, because there is not a number n which added to its sum of digits gives 12538700.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62594 + ... + 62793.

It is an arithmetic number, because the mean of its divisors is an integer number (1511622).

Almost surely, 212538700 is an apocalyptic number.

12538700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12538700 is an abundant number, since it is smaller than the sum of its proper divisors (14670496).

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

12538700 is a wasteful number, since it uses less digits than its factorization.

12538700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125401 (or 125394 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12538700 is about 3541.0026828569. The cubic root of 12538700 is about 232.3187009185.

The spelling of 12538700 in words is "twelve million, five hundred thirty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125387 250774 501548 626935 1253870 2507740 3134675 6269350 12538700