| Base | Representation |
|---|---|
| bin | 10010101000010101… |
| … | …010000010110111100 |
| 3 | 1220122010002011201220 |
| 4 | 102220111100112330 |
| 5 | 311432011413000 |
| 6 | 13104551233340 |
| 7 | 1305501211032 |
| oct | 225025202674 |
| 9 | 56563064656 |
| 10 | 20004013500 |
| 11 | 8535820469 |
| 12 | 3a63378850 |
| 13 | 1b6a4816a3 |
| 14 | d7aa4c552 |
| 15 | 7c12b01a0 |
| hex | 4a85505bc |
20004013500 has 96 divisors (see below), whose sum is σ = 58285543680. Its totient is φ = 5331304000.
The previous prime is 20004013493. The next prime is 20004013507. The reversal of 20004013500 is 531040002.
It is an interprime number because it is at equal distance from previous prime (20004013493) and next prime (20004013507).
It is a super-2 number, since 2×200040135002 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 20004013500.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20004013507) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3865915 + ... + 3871085.
It is an arithmetic number, because the mean of its divisors is an integer number (607141080).
Almost surely, 220004013500 is an apocalyptic number.
20004013500 is a gapful number since it is divisible by the number (20) 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 20004013500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29142771840).
20004013500 is an abundant number, since it is smaller than the sum of its proper divisors (38281530180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20004013500 is a wasteful number, since it uses less digits than its factorization.
20004013500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7772 (or 7760 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 15.
Adding to 20004013500 its reverse (531040002), we get a palindrome (20535053502).
The spelling of 20004013500 in words is "twenty billion, four million, thirteen thousand, five hundred".
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