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13819008 = 27375397
BaseRepresentation
bin110100101101…
…110010000000
3222000002010010
4310231302000
512014202013
61212104520
7225313440
oct64556200
928002103
1013819008
117889475
124765140
132b2ac38
141b9a120
15132e7c3
hexd2dc80

13819008 has 128 divisors (see below), whose sum is σ = 43182720. Its totient is φ = 3833856.

The previous prime is 13819007. The next prime is 13819033. The reversal of 13819008 is 80091831.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (13819007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142416 + ... + 142512.

It is an arithmetic number, because the mean of its divisors is an integer number (337365).

Almost surely, 213819008 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 13819008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21591360).

13819008 is an abundant number, since it is smaller than the sum of its proper divisors (29363712).

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

13819008 is an equidigital number, since it uses as much as digits as its factorization.

13819008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 13819008 is about 3717.3926346298. The cubic root of 13819008 is about 239.9711076330.

The spelling of 13819008 in words is "thirteen million, eight hundred nineteen thousand, eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 53 56 64 84 96 97 106 112 128 159 168 192 194 212 224 291 318 336 371 384 388 424 448 582 636 672 679 742 776 848 896 1113 1164 1272 1344 1358 1484 1552 1696 2037 2226 2328 2544 2688 2716 2968 3104 3392 4074 4452 4656 5088 5141 5432 5936 6208 6784 8148 8904 9312 10176 10282 10864 11872 12416 15423 16296 17808 18624 20352 20564 21728 23744 30846 32592 35616 35987 37248 41128 43456 47488 61692 65184 71232 71974 82256 86912 107961 123384 130368 142464 143948 164512 215922 246768 260736 287896 329024 431844 493536 575792 658048 863688 987072 1151584 1727376 1974144 2303168 3454752 4606336 6909504 13819008