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13169240 = 235726719
BaseRepresentation
bin110010001111…
…001001011000
3220210001210122
4302033021120
511332403430
61150132412
7216636200
oct62171130
926701718
1013169240
117485277
1244b1108
132961266
141a6b400
151251ee5
hexc8f258

13169240 has 48 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 4514496.

The previous prime is 13169231. The next prime is 13169243. The reversal of 13169240 is 4296131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13169243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1400 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 213169240 is an apocalyptic number.

13169240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13169240 is an abundant number, since it is smaller than the sum of its proper divisors (21304360).

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

13169240 is a wasteful number, since it uses less digits than its factorization.

13169240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744 (or 6733 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13169240 is about 3628.9447501994. The cubic root of 13169240 is about 236.1494313608.

The spelling of 13169240 in words is "thirteen million, one hundred sixty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 6719 13438 26876 33595 47033 53752 67190 94066 134380 188132 235165 268760 329231 376264 470330 658462 940660 1316924 1646155 1881320 2633848 3292310 6584620 13169240