Search a number
-
+
103100000000 = 28581031
BaseRepresentation
bin110000000000100111…
…1010010011100000000
3100212010012211122210112
41200001033102130000
53142122100000000
6115210302450452
710306625353244
oct1400117223400
9325105748715
10103100000000
113a7a7297a78
1217b93b93a28
139950b3777a
144dc0a58424
152a36483235
hex18013d2700

103100000000 has 162 divisors, whose sum is σ = 257495961912. Its totient is φ = 41200000000.

The previous prime is 103099999999. The next prime is 103100000023. The reversal of 103100000000 is 1301.

It is a super-2 number, since 2×1031000000002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a self number, because there is not a number n which added to its sum of digits gives 103100000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 99999485 + ... + 100000515.

Almost surely, 2103100000000 is an apocalyptic number.

103100000000 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 103100000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128747980956).

103100000000 is an abundant number, since it is smaller than the sum of its proper divisors (154395961912).

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

103100000000 is an frugal number, since it uses more digits than its factorization.

103100000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 5.

Adding to 103100000000 its reverse (1301), we get a palindrome (103100001301).

The spelling of 103100000000 in words is "one hundred three billion, one hundred million", and thus it is an aban number.