Base | Representation |
---|---|
bin | 11100101011101011… |
… | …110111110000110010 |
3 | 2221111100021212000120 |
4 | 130223223313300302 |
5 | 1001033202120304 |
6 | 22052005231110 |
7 | 2140124030241 |
oct | 345353676062 |
9 | 87440255016 |
10 | 30797691954 |
11 | 12074548887 |
12 | 5b76102496 |
13 | 2b9a71a583 |
14 | 16c2372958 |
15 | c03b970d9 |
hex | 72baf7c32 |
30797691954 has 32 divisors (see below), whose sum is σ = 64199675904. Its totient is φ = 9838279440.
The previous prime is 30797691949. The next prime is 30797691959. The reversal of 30797691954 is 45919679703.
It is an interprime number because it is at equal distance from previous prime (30797691949) and next prime (30797691959).
It is not an unprimeable number, because it can be changed into a prime (30797691959) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784624 + ... + 822939.
It is an arithmetic number, because the mean of its divisors is an integer number (2006239872).
Almost surely, 230797691954 is an apocalyptic number.
30797691954 is an abundant number, since it is smaller than the sum of its proper divisors (33401983950).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30797691954 is a wasteful number, since it uses less digits than its factorization.
30797691954 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1607702.
The product of its (nonzero) digits is 12859560, while the sum is 60.
The spelling of 30797691954 in words is "thirty billion, seven hundred ninety-seven million, six hundred ninety-one thousand, nine hundred fifty-four".
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