| Base | Representation |
|---|---|
| bin | 1011100011000110… |
| … | …0011111100010100 |
| 3 | 22000001012022120120 |
| 4 | 2320301203330110 |
| 5 | 22322100000040 |
| 6 | 1231335431540 |
| 7 | 136551364635 |
| oct | 27061437424 |
| 9 | 8001168516 |
| 10 | 3100000020 |
| 11 | 1350961997 |
| 12 | 7262255b0 |
| 13 | 3a5328050 |
| 14 | 2159d788c |
| 15 | 1322487d0 |
| hex | b8c63f14 |
3100000020 has 48 divisors (see below), whose sum is σ = 9347694720. Its totient is φ = 763076736.
The previous prime is 3099999953. The next prime is 3100000027. The reversal of 3100000020 is 200000013.
3100000020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×31000000202 = 19220000248000000800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (6).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a junction number, because it is equal to n+sod(n) for n = 3099999954 and 3100000008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3100000027) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986400 + ... + 1987959.
It is an arithmetic number, because the mean of its divisors is an integer number (194743640).
Almost surely, 23100000020 is an apocalyptic number.
3100000020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
3100000020 is an abundant number, since it is smaller than the sum of its proper divisors (6247694700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3100000020 is a wasteful number, since it uses less digits than its factorization.
3100000020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3974384 (or 3974382 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 6.
The square root of 3100000020 is about 55677.6438079055. The cubic root of 3100000020 is about 1458.0997389624.
Adding to 3100000020 its reverse (200000013), we get a palindrome (3300000033).
The spelling of 3100000020 in words is "three billion, one hundred million, twenty", and thus it is an aban number.
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