Base | Representation |
---|---|
bin | 101111111110001111… |
… | …0100100011111011110 |
3 | 100211220122112100002010 |
4 | 1133330132210133132 |
5 | 3141441122320110 |
6 | 115154330412050 |
7 | 10304635400112 |
oct | 1377436443736 |
9 | 324818470063 |
10 | 103020120030 |
11 | 3a766198a73 |
12 | 17b71291026 |
13 | 993a419c09 |
14 | 4db41c3742 |
15 | 2a2e455020 |
hex | 17fc7a47de |
103020120030 has 64 divisors (see below), whose sum is σ = 249760786176. Its totient is φ = 27193920000.
The previous prime is 103020120017. The next prime is 103020120043. The reversal of 103020120030 is 30021020301.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (103020120017) and next prime (103020120043).
It is a super-2 number, since 2×1030201200302 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 103020119988 and 103020120015.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1543245 + ... + 1608615.
It is an arithmetic number, because the mean of its divisors is an integer number (3902512284).
Almost surely, 2103020120030 is an apocalyptic number.
103020120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
103020120030 is an abundant number, since it is smaller than the sum of its proper divisors (146740666146).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
103020120030 is a wasteful number, since it uses less digits than its factorization.
103020120030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65913.
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 103020120030 its reverse (30021020301), we get a palindrome (133041140331).
The spelling of 103020120030 in words is "one hundred three billion, twenty million, one hundred twenty thousand, thirty".
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