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13297608 = 233420521
BaseRepresentation
bin110010101110…
…011111001000
3221000120220000
4302232133020
511401010413
61153003000
7221012352
oct62563710
927016800
1013297608
117562765
124553460
1329a780c
141aa20d2
15127a073
hexcae7c8

13297608 has 40 divisors (see below), whose sum is σ = 37247430. Its totient is φ = 4432320.

The previous prime is 13297601. The next prime is 13297619. The reversal of 13297608 is 80679231.

It can be written as a sum of positive squares in only one way, i.e., 10614564 + 2683044 = 3258^2 + 1638^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13297601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9613 + ... + 10908.

Almost surely, 213297608 is an apocalyptic number.

13297608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13297608 is an abundant number, since it is smaller than the sum of its proper divisors (23949822).

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

13297608 is a wasteful number, since it uses less digits than its factorization.

13297608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539 (or 20526 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13297608 is about 3646.5885427342. The cubic root of 13297608 is about 236.9142455332.

The spelling of 13297608 in words is "thirteen million, two hundred ninety-seven thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 20521 41042 61563 82084 123126 164168 184689 246252 369378 492504 554067 738756 1108134 1477512 1662201 2216268 3324402 4432536 6648804 13297608