Base | Representation |
---|---|
bin | 1101111110101011111010… |
… | …11100000110111011001110 |
3 | 11000211211101001220012012120 |
4 | 12333111331130012323032 |
5 | 13012130421434122440 |
6 | 145214150003513410 |
7 | 6321656143004016 |
oct | 677257534067316 |
9 | 130754331805176 |
10 | 30741185457870 |
11 | 9882299851838 |
12 | 3545a20988866 |
13 | 141cb5c430ab4 |
14 | 783c4a484c46 |
15 | 3849ae97edd0 |
hex | 1bf57d706ece |
30741185457870 has 64 divisors (see below), whose sum is σ = 74558854895616. Its totient is φ = 8111025699840.
The previous prime is 30741185457869. The next prime is 30741185457949. The reversal of 30741185457870 is 7875458114703.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9821755 + ... + 12567785.
It is an arithmetic number, because the mean of its divisors is an integer number (1164982107744).
Almost surely, 230741185457870 is an apocalyptic number.
30741185457870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30741185457870 is an abundant number, since it is smaller than the sum of its proper divisors (43817669437746).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30741185457870 is a wasteful number, since it uses less digits than its factorization.
30741185457870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2749985.
The product of its (nonzero) digits is 26342400, while the sum is 60.
The spelling of 30741185457870 in words is "thirty trillion, seven hundred forty-one billion, one hundred eighty-five million, four hundred fifty-seven thousand, eight hundred seventy".
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