| Base | Representation |
|---|---|
| bin | 101101010011011… |
| … | …0001101011110100 |
| 3 | 10220221100210222002 |
| 4 | 1122212301223310 |
| 5 | 11103122130140 |
| 6 | 410501154432 |
| 7 | 52445521316 |
| oct | 13246615364 |
| 9 | 3827323862 |
| 10 | 1520114420 |
| 11 | 710079510 |
| 12 | 3650bba18 |
| 13 | 1b2c157b6 |
| 14 | 105c5b7b6 |
| 15 | 8d6be415 |
| hex | 5a9b1af4 |
1520114420 has 96 divisors (see below), whose sum is σ = 3590770176. Its totient is φ = 535808000.
The previous prime is 1520114389. The next prime is 1520114423. The reversal of 1520114420 is 244110251.
It is a happy number.
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 = 1520114392 and 1520114401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1520114423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167770 + ... + 1169070.
It is an arithmetic number, because the mean of its divisors is an integer number (37403856).
Almost surely, 21520114420 is an apocalyptic number.
1520114420 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 1520114420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795385088).
1520114420 is an abundant number, since it is smaller than the sum of its proper divisors (2070655756).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1520114420 is a wasteful number, since it uses less digits than its factorization.
1520114420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1481 (or 1479 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 20.
The square root of 1520114420 is about 38988.6447571597. The cubic root of 1520114420 is about 1149.8082654512.
Adding to 1520114420 its reverse (244110251), we get a palindrome (1764224671).
The spelling of 1520114420 in words is "one billion, five hundred twenty million, one hundred fourteen thousand, four hundred twenty".
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