Search a number
-
+
12957024 = 253139971
BaseRepresentation
bin110001011011…
…010101100000
3220101021200210
4301123111200
511304111044
61141414120
7215063403
oct61332540
926337623
1012957024
11734a893
12440a340
1328b87a2
141a13d3a
15120e1b9
hexc5b560

12957024 has 48 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 4283520.

The previous prime is 12957023. The next prime is 12957037. The reversal of 12957024 is 42075921.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 12956982 and 12957000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12957023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12859 + ... + 13829.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 212957024 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 12957024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17146080).

12957024 is an abundant number, since it is smaller than the sum of its proper divisors (21335136).

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

12957024 is a wasteful number, since it uses less digits than its factorization.

12957024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12957024 is about 3599.5866429355. The cubic root of 12957024 is about 234.8740777016.

It can be divided in two parts, 12 and 957024, that added together give a triangular number (957036 = T1383).

The spelling of 12957024 in words is "twelve million, nine hundred fifty-seven thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 139 278 417 556 834 971 1112 1668 1942 2224 2913 3336 3884 4448 5826 6672 7768 11652 13344 15536 23304 31072 46608 93216 134969 269938 404907 539876 809814 1079752 1619628 2159504 3239256 4319008 6478512 12957024