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13431024 = 2432194909
BaseRepresentation
bin110011001111…
…000011110000
3221021100220100
4303033003300
511414243044
61155512400
7222106335
oct63170360
927240810
1013431024
117643a22
1245b8700
132a23469
141ad898c
1512a4869
hexccf0f0

13431024 has 60 divisors (see below), whose sum is σ = 39574600. Its totient is φ = 4240512.

The previous prime is 13431017. The next prime is 13431053. The reversal of 13431024 is 42013431.

13431024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13430988 and 13431006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282 + ... + 5190.

Almost surely, 213431024 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 13431024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19787300).

13431024 is an abundant number, since it is smaller than the sum of its proper divisors (26143576).

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

13431024 is a wasteful number, since it uses less digits than its factorization.

13431024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942 (or 4933 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13431024 is about 3664.8361491341. The cubic root of 13431024 is about 237.7039371133.

Adding to 13431024 its reverse (42013431), we get a palindrome (55444455).

The spelling of 13431024 in words is "thirteen million, four hundred thirty-one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 456 684 912 1368 2736 4909 9818 14727 19636 29454 39272 44181 58908 78544 88362 93271 117816 176724 186542 235632 279813 353448 373084 559626 706896 746168 839439 1119252 1492336 1678878 2238504 3357756 4477008 6715512 13431024