Base | Representation |
---|---|
bin | 11100010000110100… |
… | …101111011111000000 |
3 | 2220022221021222111010 |
4 | 130100310233133000 |
5 | 444122320020022 |
6 | 21535150120520 |
7 | 2123012343306 |
oct | 342064573700 |
9 | 86287258433 |
10 | 30347032512 |
11 | 11963121765 |
12 | 5a6b1b0140 |
13 | 2b2824c694 |
14 | 167c582276 |
15 | bc932850c |
hex | 710d2f7c0 |
30347032512 has 56 divisors (see below), whose sum is σ = 80613211392. Its totient is φ = 10075360000.
The previous prime is 30347032511. The next prime is 30347032559. The reversal of 30347032512 is 21523074303.
It is a self number, because there is not a number n which added to its sum of digits gives 30347032512.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30347032511) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266664 + ... + 363047.
It is an arithmetic number, because the mean of its divisors is an integer number (1439521632).
Almost surely, 230347032512 is an apocalyptic number.
30347032512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30347032512 is an abundant number, since it is smaller than the sum of its proper divisors (50266178880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30347032512 is a wasteful number, since it uses less digits than its factorization.
30347032512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 629977 (or 629967 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 30.
The spelling of 30347032512 in words is "thirty billion, three hundred forty-seven million, thirty-two thousand, five hundred twelve".
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