Base | Representation |
---|---|
bin | 11100011101001011… |
… | …001010000100001001 |
3 | 2220212101011222001201 |
4 | 130131023022010021 |
5 | 1000033341011040 |
6 | 22011511144201 |
7 | 2131106466520 |
oct | 343513120411 |
9 | 86771158051 |
10 | 30554235145 |
11 | 11a5a084105 |
12 | 5b08675061 |
13 | 2b5c1591a5 |
14 | 169bcbb4b7 |
15 | bdc606a9a |
hex | 71d2ca109 |
30554235145 has 32 divisors (see below), whose sum is σ = 42463491840. Its totient is φ = 20671872000.
The previous prime is 30554235139. The next prime is 30554235223. The reversal of 30554235145 is 54153245503.
It is not a de Polignac number, because 30554235145 - 217 = 30554104073 is a prime.
It is a super-2 number, since 2×305542351452 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2343645 + ... + 2356645.
It is an arithmetic number, because the mean of its divisors is an integer number (1326984120).
Almost surely, 230554235145 is an apocalyptic number.
30554235145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30554235145 is a deficient number, since it is larger than the sum of its proper divisors (11909256695).
30554235145 is a wasteful number, since it uses less digits than its factorization.
30554235145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13905.
The product of its (nonzero) digits is 180000, while the sum is 37.
The spelling of 30554235145 in words is "thirty billion, five hundred fifty-four million, two hundred thirty-five thousand, one hundred forty-five".
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