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13140672 = 26389769
BaseRepresentation
bin110010001000…
…001011000000
3220201121121120
4302020023000
511331000142
61145352240
7216456666
oct62101300
926647546
1013140672
117465866
124498680
13295125c
141a60c36
1512487ec
hexc882c0

13140672 has 56 divisors (see below), whose sum is σ = 35204400. Its totient is φ = 4325376.

The previous prime is 13140649. The next prime is 13140689. The reversal of 13140672 is 27604131.

It is a super-3 number, since 3×131406723 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16704 + ... + 17472.

It is an arithmetic number, because the mean of its divisors is an integer number (628650).

Almost surely, 213140672 is an apocalyptic number.

13140672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13140672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17602200).

13140672 is an abundant number, since it is smaller than the sum of its proper divisors (22063728).

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

13140672 is an equidigital number, since it uses as much as digits as its factorization.

13140672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13140672 is about 3625.0064827528. The cubic root of 13140672 is about 235.9785482752.

The spelling of 13140672 in words is "thirteen million, one hundred forty thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 89 96 178 192 267 356 534 712 769 1068 1424 1538 2136 2307 2848 3076 4272 4614 5696 6152 8544 9228 12304 17088 18456 24608 36912 49216 68441 73824 136882 147648 205323 273764 410646 547528 821292 1095056 1642584 2190112 3285168 4380224 6570336 13140672