Base | Representation |
---|---|
bin | 11100011101001011… |
… | …001010010000000011 |
3 | 2220212101012000002221 |
4 | 130131023022100003 |
5 | 1000033341022112 |
6 | 22011511151511 |
7 | 2131106501656 |
oct | 343513122003 |
9 | 86771160087 |
10 | 30554235907 |
11 | 11a5a084738 |
12 | 5b08675597 |
13 | 2b5c159640 |
14 | 169bcbb89d |
15 | bdc606e07 |
hex | 71d2ca403 |
30554235907 has 4 divisors (see below), whose sum is σ = 32904561760. Its totient is φ = 28203910056.
The previous prime is 30554235853. The next prime is 30554235911. The reversal of 30554235907 is 70953245503.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30554235907 is a prime.
It is a super-2 number, since 2×305542359072 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30554235917) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175162907 + ... + 1175162932.
It is an arithmetic number, because the mean of its divisors is an integer number (8226140440).
Almost surely, 230554235907 is an apocalyptic number.
30554235907 is a deficient number, since it is larger than the sum of its proper divisors (2350325853).
30554235907 is a wasteful number, since it uses less digits than its factorization.
30554235907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2350325852.
The product of its (nonzero) digits is 567000, while the sum is 43.
The spelling of 30554235907 in words is "thirty billion, five hundred fifty-four million, two hundred thirty-five thousand, nine hundred seven".
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