Base | Representation |
---|---|
bin | 1011101001000011101… |
… | …10111110111000111000 |
3 | 1102020110200121101110110 |
4 | 11310201312332320320 |
5 | 23023200001120044 |
6 | 503431340344320 |
7 | 40620242033253 |
oct | 5644166767070 |
9 | 1366420541413 |
10 | 400000020024 |
11 | 144703646450 |
12 | 656332450a0 |
13 | 2b9486474a7 |
14 | 155081aa09a |
15 | a6118ee6b9 |
hex | 5d21dbee38 |
400000020024 has 64 divisors (see below), whose sum is σ = 1120393203840. Its totient is φ = 117936120960.
The previous prime is 400000020023. The next prime is 400000020073. The reversal of 400000020024 is 420020000004.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 400000019991 and 400000020009.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (400000020023) 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, 20465254 + ... + 20484789.
It is an arithmetic number, because the mean of its divisors is an integer number (17506143810).
Almost surely, 2400000020024 is an apocalyptic number.
400000020024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.
It is an amenable number.
400000020024 is an abundant number, since it is smaller than the sum of its proper divisors (720393183816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
400000020024 is a wasteful number, since it uses less digits than its factorization.
400000020024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40950100 (or 40950096 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 12.
Adding to 400000020024 its reverse (420020000004), we get a palindrome (820020020028).
The spelling of 400000020024 in words is "four hundred billion, twenty thousand, twenty-four".
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