Search a number
-
+
13240548 = 22322315991
BaseRepresentation
bin110010100000…
…100011100100
3220220200121200
4302200203210
511342144143
61151442500
7220354116
oct62404344
926820550
1013240548
117523902
124526430
132987859
141a893b6
1512681d3
hexca08e4

13240548 has 36 divisors (see below), whose sum is σ = 34926528. Its totient is φ = 4221360.

The previous prime is 13240543. The next prime is 13240553. The reversal of 13240548 is 84504231.

It is an interprime number because it is at equal distance from previous prime (13240543) and next prime (13240553).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×132405482 = 350624222680608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13240541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7168 + ... + 8823.

Almost surely, 213240548 is an apocalyptic number.

13240548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13240548 is an abundant number, since it is smaller than the sum of its proper divisors (21685980).

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

13240548 is a wasteful number, since it uses less digits than its factorization.

13240548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16024 (or 16019 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 13240548 is about 3638.7563809631. The cubic root of 13240548 is about 236.5748935540.

Adding to 13240548 its reverse (84504231), we get a palindrome (97744779).

The spelling of 13240548 in words is "thirteen million, two hundred forty thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 15991 31982 47973 63964 95946 143919 191892 287838 367793 575676 735586 1103379 1471172 2206758 3310137 4413516 6620274 13240548