Search a number
-
+
13252123240 = 235331303081
BaseRepresentation
bin11000101011110001…
…10101101001101000
31021012120012121112021
430111320311221220
5204120020420430
610030554554224
7646254121546
oct142570655150
937176177467
1013252123240
115690529374
12269a138974
1313326a8955
148da038d96
1552865507a
hex315e35a68

13252123240 has 16 divisors (see below), whose sum is σ = 29817277380. Its totient is φ = 5300849280.

The previous prime is 13252123193. The next prime is 13252123267. The reversal of 13252123240 is 4232125231.

13252123240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13239263844 + 12859396 = 115062^2 + 3586^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165651501 + ... + 165651580.

Almost surely, 213252123240 is an apocalyptic number.

13252123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13252123240 is an abundant number, since it is smaller than the sum of its proper divisors (16565154140).

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

13252123240 is a wasteful number, since it uses less digits than its factorization.

13252123240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331303092 (or 331303088 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 13252123240 its reverse (4232125231), we get a palindrome (17484248471).

The spelling of 13252123240 in words is "thirteen billion, two hundred fifty-two million, one hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 331303081 662606162 1325212324 1656515405 2650424648 3313030810 6626061620 13252123240