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13469208768 = 26345214987
BaseRepresentation
bin11001000101101001…
…11101000011000000
31021202200200200220000
430202310331003000
5210041104140033
610104311520000
7654531246141
oct144264750300
937680620800
1013469208768
1157920209a4
12273a989000
131368665922
1491abc7ac8
1553c736a13
hex322d3d0c0

13469208768 has 140 divisors (see below), whose sum is σ = 40011611112. Its totient is φ = 4480220160.

The previous prime is 13469208743. The next prime is 13469208769. The reversal of 13469208768 is 86780296431.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13469208769) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2698371 + ... + 2703357.

Almost surely, 213469208768 is an apocalyptic number.

13469208768 is a gapful number since it is divisible by the number (18) 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 13469208768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20005805556).

13469208768 is an abundant number, since it is smaller than the sum of its proper divisors (26542402344).

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

13469208768 is an equidigital number, since it uses as much as digits as its factorization.

13469208768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 13469208768 in words is "thirteen billion, four hundred sixty-nine million, two hundred eight thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 288 324 432 521 576 648 864 1042 1296 1563 1728 2084 2592 3126 4168 4689 4987 5184 6252 8336 9378 9974 12504 14067 14961 16672 18756 19948 25008 28134 29922 33344 37512 39896 42201 44883 50016 56268 59844 75024 79792 84402 89766 100032 112536 119688 134649 150048 159584 168804 179532 225072 239376 269298 300096 319168 337608 359064 403947 450144 478752 538596 675216 718128 807894 900288 957504 1077192 1350432 1436256 1615788 2154384 2598227 2700864 2872512 3231576 4308768 5196454 6463152 7794681 8617536 10392908 12926304 15589362 20785816 23384043 25852608 31178724 41571632 46768086 62357448 70152129 83143264 93536172 124714896 140304258 166286528 187072344 210456387 249429792 280608516 374144688 420912774 498859584 561217032 748289376 841825548 1122434064 1496578752 1683651096 2244868128 3367302192 4489736256 6734604384 13469208768