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13023123200 = 285211811723
BaseRepresentation
bin11000010000011110…
…10001011100000000
31020121121022012112022
430020033101130000
5203132404420300
65552134421012
7640503502133
oct141017213400
936547265468
1013023123200
11558323923a
122635501768
1312c7109879
148b786821a
155134bd285
hex3083d1700

13023123200 has 108 divisors (see below), whose sum is σ = 32280282888. Its totient is φ = 5201817600.

The previous prime is 13023123163. The next prime is 13023123229. The reversal of 13023123200 is 232132031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7557539 + ... + 7559261.

Almost surely, 213023123200 is an apocalyptic number.

13023123200 is a gapful number since it is divisible by the number (10) 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 13023123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16140141444).

13023123200 is an abundant number, since it is smaller than the sum of its proper divisors (19257159688).

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

13023123200 is a wasteful number, since it uses less digits than its factorization.

13023123200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2911 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13023123200 its reverse (232132031), we get a palindrome (13255255231).

The spelling of 13023123200 in words is "thirteen billion, twenty-three million, one hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 640 800 1181 1280 1600 1723 2362 3200 3446 4724 5905 6400 6892 8615 9448 11810 13784 17230 18896 23620 27568 29525 34460 37792 43075 47240 55136 59050 68920 75584 86150 94480 110272 118100 137840 151168 172300 188960 220544 236200 275680 302336 344600 377920 441088 472400 551360 689200 755840 944800 1102720 1378400 1511680 1889600 2034863 2205440 2756800 3779200 4069726 5513600 7558400 8139452 10174315 11027200 16278904 20348630 32557808 40697260 50871575 65115616 81394520 101743150 130231232 162789040 203486300 260462464 325578080 406972600 520924928 651156160 813945200 1302312320 1627890400 2604624640 3255780800 6511561600 13023123200