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13240152 = 233361297
BaseRepresentation
bin110010100000…
…011101011000
3220220200002000
4302200131120
511342141102
61151441000
7220353012
oct62403530
926820060
1013240152
117523582
124526160
132987613
141a891b2
15126801c
hexca0758

13240152 has 32 divisors (see below), whose sum is σ = 36778800. Its totient is φ = 4413312.

The previous prime is 13240141. The next prime is 13240159. The reversal of 13240152 is 25104231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30433 + ... + 30864.

Almost surely, 213240152 is an apocalyptic number.

13240152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13240152 is an abundant number, since it is smaller than the sum of its proper divisors (23538648).

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

13240152 is a wasteful number, since it uses less digits than its factorization.

13240152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61312 (or 61302 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13240152 is about 3638.7019663611. The cubic root of 13240152 is about 236.5725350265.

Adding to 13240152 its reverse (25104231), we get a palindrome (38344383).

The spelling of 13240152 in words is "thirteen million, two hundred forty thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 61297 122594 183891 245188 367782 490376 551673 735564 1103346 1471128 1655019 2206692 3310038 4413384 6620076 13240152