Base | Representation |
---|---|
bin | 11100110000101011… |
… | …001100110010101101 |
3 | 2221201011210202122201 |
4 | 130300223030302231 |
5 | 1001221114331104 |
6 | 22104155341501 |
7 | 2142161405032 |
oct | 346053146255 |
9 | 87634722581 |
10 | 30881402029 |
11 | 12107823465 |
12 | 5b9a151891 |
13 | 2bb1b7956a |
14 | 16cd523389 |
15 | c0b1d00a4 |
hex | 730acccad |
30881402029 has 8 divisors (see below), whose sum is σ = 32555824128. Its totient is φ = 29249370480.
The previous prime is 30881402009. The next prime is 30881402081. The reversal of 30881402029 is 92020418803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30881402029 - 233 = 22291467437 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30881402009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10596142 + ... + 10599055.
It is an arithmetic number, because the mean of its divisors is an integer number (4069478016).
Almost surely, 230881402029 is an apocalyptic number.
It is an amenable number.
30881402029 is a deficient number, since it is larger than the sum of its proper divisors (1674422099).
30881402029 is a wasteful number, since it uses less digits than its factorization.
30881402029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21195275.
The product of its (nonzero) digits is 27648, while the sum is 37.
The spelling of 30881402029 in words is "thirty billion, eight hundred eighty-one million, four hundred two thousand, twenty-nine".
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