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13002100000 = 2555130021
BaseRepresentation
bin11000001101111110…
…00100110100100000
31020120010202010010021
430012333010310200
5203112014200000
65550104043224
7640130012041
oct140677046440
936503663107
1013002100000
11557238a19a
12262a463514
1312c29587c6
148b4b548c8
1551171911a
hex306fc4d20

13002100000 has 72 divisors (see below), whose sum is σ = 31995553716. Its totient is φ = 5200800000.

The previous prime is 13002099991. The next prime is 13002100003. The reversal of 13002100000 is 120031.

It can be written as a sum of positive squares in 6 ways, for example, as 5224976656 + 7777123344 = 72284^2 + 88188^2 .

It is not an unprimeable number, because it can be changed into a prime (13002100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34990 + ... + 165010.

Almost surely, 213002100000 is an apocalyptic number.

13002100000 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 13002100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15997776858).

13002100000 is an abundant number, since it is smaller than the sum of its proper divisors (18993453716).

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

13002100000 is an frugal number, since it uses more digits than its factorization.

13002100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130056 (or 130028 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 13002100000 its reverse (120031), we get a palindrome (13002220031).

The spelling of 13002100000 in words is "thirteen billion, two million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 5000 6250 10000 12500 20000 25000 50000 100000 130021 260042 520084 650105 1040168 1300210 2080336 2600420 3250525 4160672 5200840 6501050 10401680 13002100 16252625 20803360 26004200 32505250 52008400 65010500 81263125 104016800 130021000 162526250 260042000 325052500 406315625 520084000 650105000 812631250 1300210000 1625262500 2600420000 3250525000 6501050000 13002100000