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13240832 = 29112351
BaseRepresentation
bin110010100000…
…101000000000
3220220201000012
4302200220000
511342201312
61151444052
7220355003
oct62405000
926821005
1013240832
117524040
124526628
132987a17
141a8953a
151268322
hexca0a00

13240832 has 40 divisors (see below), whose sum is σ = 28873152. Its totient is φ = 6016000.

The previous prime is 13240817. The next prime is 13240837. The reversal of 13240832 is 23804231.

It is a super-3 number, since 3×132408323 (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13240798 and 13240807.

It is not an unprimeable number, because it can be changed into a prime (13240837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4457 + ... + 6807.

Almost surely, 213240832 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 13240832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14436576).

13240832 is an abundant number, since it is smaller than the sum of its proper divisors (15632320).

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

13240832 is an equidigital number, since it uses as much as digits as its factorization.

13240832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13240832 is about 3638.7954050757. The cubic root of 13240832 is about 236.5765849943.

The spelling of 13240832 in words is "thirteen million, two hundred forty thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 704 1408 2351 2816 4702 5632 9404 18808 25861 37616 51722 75232 103444 150464 206888 300928 413776 601856 827552 1203712 1655104 3310208 6620416 13240832