Base | Representation |
---|---|
bin | 101110110000110000… |
… | …1110110011010111100 |
3 | 100121012110220112110202 |
4 | 1131201201312122330 |
5 | 3121130122331140 |
6 | 114044344023032 |
7 | 10153341156215 |
oct | 1354141663274 |
9 | 317173815422 |
10 | 100420511420 |
11 | 396518405a9 |
12 | 17566761a78 |
13 | 9614983178 |
14 | 4c08c4440c |
15 | 292b100915 |
hex | 17618766bc |
100420511420 has 48 divisors (see below), whose sum is σ = 211858334688. Its totient is φ = 39982602240.
The previous prime is 100420511413. The next prime is 100420511423. The reversal of 100420511420 is 24115024001.
It is a happy number.
It is a super-3 number, since 3×1004205114203 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 100420511392 and 100420511401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (100420511423) 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, 14779544 + ... + 14786336.
It is an arithmetic number, because the mean of its divisors is an integer number (4413715306).
Almost surely, 2100420511420 is an apocalyptic number.
100420511420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
100420511420 is an abundant number, since it is smaller than the sum of its proper divisors (111437823268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100420511420 is a wasteful number, since it uses less digits than its factorization.
100420511420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10110 (or 10108 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 20.
Adding to 100420511420 its reverse (24115024001), we get a palindrome (124535535421).
The spelling of 100420511420 in words is "one hundred billion, four hundred twenty million, five hundred eleven thousand, four hundred twenty".
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