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13440608 = 251731797
BaseRepresentation
bin110011010001…
…011001100000
3221021212001022
4303101121200
511420044413
61200025012
7222146306
oct63213140
927255038
1013440608
117650145
124602168
132a2792c
141adc276
1512a7608
hexcd1660

13440608 has 48 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 6113280.

The previous prime is 13440607. The next prime is 13440617. The reversal of 13440608 is 80604431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440607) 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, 16466 + ... + 17262.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 213440608 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 13440608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14478912).

13440608 is an abundant number, since it is smaller than the sum of its proper divisors (15517216).

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

13440608 is a wasteful number, since it uses less digits than its factorization.

13440608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13440608 is about 3666.1434778252. The cubic root of 13440608 is about 237.7604632792.

The spelling of 13440608 in words is "thirteen million, four hundred forty thousand, six hundred eight".

Divisors: 1 2 4 8 16 17 31 32 34 62 68 124 136 248 272 496 527 544 797 992 1054 1594 2108 3188 4216 6376 8432 12752 13549 16864 24707 25504 27098 49414 54196 98828 108392 197656 216784 395312 420019 433568 790624 840038 1680076 3360152 6720304 13440608