Search a number
-
+
12532560 = 243579661
BaseRepresentation
bin101111110011…
…101101010000
3212120201102220
4233303231100
511202020220
61124341040
7211345035
oct57635520
925521386
1012532560
11708a997
124244780
13279a521
14194338c
151178540
hexbf3b50

12532560 has 80 divisors (see below), whose sum is σ = 39402240. Its totient is φ = 3294720.

The previous prime is 12532543. The next prime is 12532561. The reversal of 12532560 is 6523521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12532560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12532561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18630 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (492528).

Almost surely, 212532560 is an apocalyptic number.

12532560 is a gapful number since it is divisible by the number (10) 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 12532560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19701120).

12532560 is an abundant number, since it is smaller than the sum of its proper divisors (26869680).

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

12532560 is a wasteful number, since it uses less digits than its factorization.

12532560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12532560 is about 3540.1355906236. The cubic root of 12532560 is about 232.2807738149.

The spelling of 12532560 in words is "twelve million, five hundred thirty-two thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 79 80 120 158 237 240 316 395 474 632 661 790 948 1185 1264 1322 1580 1896 1983 2370 2644 3160 3305 3792 3966 4740 5288 6320 6610 7932 9480 9915 10576 13220 15864 18960 19830 26440 31728 39660 52219 52880 79320 104438 156657 158640 208876 261095 313314 417752 522190 626628 783285 835504 1044380 1253256 1566570 2088760 2506512 3133140 4177520 6266280 12532560