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13031000000 = 265683157
BaseRepresentation
bin11000010001011010…
…10100011111000000
31020122011010101110122
430020231110133000
5203141414000000
65553015315412
7640630446434
oct141055243700
936564111418
1013031000000
115587729197
12263807bb68
1312c8936bb5
148b89189c4
15514027085
hex308b547c0

13031000000 has 196 divisors, whose sum is σ = 32920359864. Its totient is φ = 5116800000.

The previous prime is 13030999997. The next prime is 13031000051. The reversal of 13031000000 is 13031.

It is a super-2 number, since 2×130310000002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 82999922 + ... + 83000078.

Almost surely, 213031000000 is an apocalyptic number.

13031000000 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 13031000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16460179932).

13031000000 is an abundant number, since it is smaller than the sum of its proper divisors (19889359864).

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

13031000000 is an frugal number, since it uses more digits than its factorization.

13031000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 8.

Adding to 13031000000 its reverse (13031), we get a palindrome (13031013031).

Multiplying 13031000000 by its reverse (13031), we get a square (169806961000000 = 130310002).

13031000000 divided by its reverse (13031) gives a 6-th power (1000000 = 106).

The spelling of 13031000000 in words is "thirteen billion, thirty-one million", and thus it is an aban number and an uban number.