Base | Representation |
---|---|
bin | 10010101011101011… |
… | …010010111100111100 |
3 | 1220210000122211102022 |
4 | 102223223102330330 |
5 | 312040342413230 |
6 | 13114314015312 |
7 | 1310052142304 |
oct | 225353227474 |
9 | 56700584368 |
10 | 20060122940 |
11 | 8564464300 |
12 | 3a7a117538 |
13 | 1b78c98840 |
14 | d84296604 |
15 | 7c61951e5 |
hex | 4abad2f3c |
20060122940 has 288 divisors, whose sum is σ = 52412946432. Its totient is φ = 6398092800.
The previous prime is 20060122939. The next prime is 20060122949. The reversal of 20060122940 is 4922106002.
It is a Harshad number since it is a multiple of its sum of digits (26).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20060122949) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65342267 + ... + 65342573.
Almost surely, 220060122940 is an apocalyptic number.
20060122940 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 20060122940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26206473216).
20060122940 is an abundant number, since it is smaller than the sum of its proper divisors (32352823492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20060122940 is a wasteful number, since it uses less digits than its factorization.
20060122940 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 449 (or 436 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 26.
Adding to 20060122940 its reverse (4922106002), we get a palindrome (24982228942).
The spelling of 20060122940 in words is "twenty billion, sixty million, one hundred twenty-two thousand, nine hundred forty".
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