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13028938000 = 2453133131601
BaseRepresentation
bin11000010001001010…
…11101000100010000
31020122000020121221021
430020211131010100
5203140402004000
65552503205224
7640604100661
oct141045350420
936560217837
1013028938000
11558654aa61
122637446814
1312c8394490
148b853d368
15513c6b11a
hex30895d110

13028938000 has 160 divisors (see below), whose sum is σ = 34057007712. Its totient is φ = 4792320000.

The previous prime is 13028937991. The next prime is 13028938033. The reversal of 13028938000 is 83982031.

It can be written as a sum of positive squares in 16 ways, for example, as 11125186576 + 1903751424 = 105476^2 + 43632^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8137200 + ... + 8138800.

Almost surely, 213028938000 is an apocalyptic number.

13028938000 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 13028938000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17028503856).

13028938000 is an abundant number, since it is smaller than the sum of its proper divisors (21028069712).

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

13028938000 is a wasteful number, since it uses less digits than its factorization.

13028938000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 13028938000 in words is "thirteen billion, twenty-eight million, nine hundred thirty-eight thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 125 130 200 208 250 260 313 325 400 500 520 626 650 1000 1040 1252 1300 1565 1601 1625 2000 2504 2600 3130 3202 3250 4069 5008 5200 6260 6404 6500 7825 8005 8138 12520 12808 13000 15650 16010 16276 20345 20813 25040 25616 26000 31300 32020 32552 39125 40025 40690 41626 62600 64040 65104 78250 80050 81380 83252 101725 104065 125200 128080 156500 160100 162760 166504 200125 203450 208130 313000 320200 325520 333008 400250 406900 416260 501113 508625 520325 626000 640400 800500 813800 832520 1002226 1017250 1040650 1601000 1627600 1665040 2004452 2034500 2081300 2505565 2601625 3202000 4008904 4069000 4162600 5011130 5203250 6514469 8017808 8138000 8325200 10022260 10406500 12527825 13028938 20044520 20813000 25055650 26057876 32572345 40089040 41626000 50111300 52115752 62639125 65144690 100222600 104231504 125278250 130289380 162861725 200445200 250556500 260578760 325723450 501113000 521157520 651446900 814308625 1002226000 1302893800 1628617250 2605787600 3257234500 6514469000 13028938000