Base | Representation |
---|---|
bin | 1110000110111000110111… |
… | …00111011011111110001110 |
3 | 11001211202211001110002102100 |
4 | 13003130123213123332032 |
5 | 13031240112044231110 |
6 | 145551435222535530 |
7 | 6351224105650554 |
oct | 703343347337616 |
9 | 131752731402370 |
10 | 31023012102030 |
11 | 9980870621893 |
12 | 3590573b975a6 |
13 | 14405c41434c0 |
14 | 793743b51bd4 |
15 | 38bea6940bc0 |
hex | 1c371b9dbf8e |
31023012102030 has 96 divisors (see below), whose sum is σ = 86920734753216. Its totient is φ = 7631484221952.
The previous prime is 31023012102023. The next prime is 31023012102053. The reversal of 31023012102030 is 3020121032013.
31023012102030 is a `hidden beast` number, since 3 + 102 + 301 + 210 + 20 + 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 = 31023012101994 and 31023012102012.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6786847 + ... + 10397466.
It is an arithmetic number, because the mean of its divisors is an integer number (905424320346).
Almost surely, 231023012102030 is an apocalyptic number.
31023012102030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31023012102030 is an abundant number, since it is smaller than the sum of its proper divisors (55897722651186).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31023012102030 is a wasteful number, since it uses less digits than its factorization.
31023012102030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17185882 (or 17185879 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 31023012102030 its reverse (3020121032013), we get a palindrome (34043133134043).
The spelling of 31023012102030 in words is "thirty-one trillion, twenty-three billion, twelve million, one hundred two thousand, thirty".
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