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1010000000000 = 210510101
BaseRepresentation
bin11101011001010001011…
…00001111010000000000
310120112222122012001121102
432230220230033100000
5113021440000000000
62051553153113532
7132653512230665
oct16545054172000
93515878161542
101010000000000
1135a37a73aa02
121438b2b588a8
137431cc85cc4
1436c545a9a6c
151b4146243d5
hexeb28b0f400

1010000000000 has 242 divisors, whose sum is σ = 2548754830614. Its totient is φ = 400000000000.

The previous prime is 1009999999933. The next prime is 1010000000011. The reversal of 1010000000000 is 101.

It can be written as a sum of positive squares in 11 ways, for example, as 569872384 + 1009430127616 = 23872^2 + 1004704^2 .

It is a sliding number, since 1010000000000 = 10000000000 + 1000000000000 and 1/10000000000 + 1/1000000000000 = 0.0000000001010000000000.

It is a Harshad number since it is a multiple of its sum of digits (2).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 9999999950 + ... + 10000000050.

Almost surely, 21010000000000 is an apocalyptic number.

1010000000000 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 1010000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274377415307).

1010000000000 is an abundant number, since it is smaller than the sum of its proper divisors (1538754830614).

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

1010000000000 is an frugal number, since it uses more digits than its factorization.

1010000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 2.

Adding to 1010000000000 its reverse (101), we get a palindrome (1010000000101).

Multiplying 1010000000000 by its reverse (101), we get a square (102010000000000 = 101000002).

1010000000000 divided by its reverse (101) gives a 10-th power (10000000000 = 1010).

The spelling of 1010000000000 in words is "one trillion, ten billion", and thus it is an aban number and an uban number.