Base | Representation |
---|---|
bin | 10101101000000010… |
… | …011101011111011110 |
3 | 2012221021010001212200 |
4 | 111220002131133132 |
5 | 340023344441110 |
6 | 14400043512330 |
7 | 1451264252466 |
oct | 255002353736 |
9 | 65837101780 |
10 | 23220312030 |
11 | 9936296123 |
12 | 46005286a6 |
13 | 2260908906 |
14 | 11a3c7aba6 |
15 | 90d82c6c0 |
hex | 56809d7de |
23220312030 has 24 divisors (see below), whose sum is σ = 60372811512. Its totient is φ = 6192083184.
The previous prime is 23220312029. The next prime is 23220312043. The reversal of 23220312030 is 3021302232.
It is a happy number.
23220312030 is a `hidden beast` number, since 2 + 322 + 0 + 312 + 0 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 23220311994 and 23220312012.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129001644 + ... + 129001823.
It is an arithmetic number, because the mean of its divisors is an integer number (2515533813).
Almost surely, 223220312030 is an apocalyptic number.
23220312030 is an abundant number, since it is smaller than the sum of its proper divisors (37152499482).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23220312030 is a wasteful number, since it uses less digits than its factorization.
23220312030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 258003480 (or 258003477 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
Adding to 23220312030 its reverse (3021302232), we get a palindrome (26241614262).
The spelling of 23220312030 in words is "twenty-three billion, two hundred twenty million, three hundred twelve thousand, thirty".
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