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3042128381 = 103149198223
BaseRepresentation
bin1011010101010011…
…0011000111111101
321212000022010121112
42311110303013331
522212241102011
61221511211405
7135246443645
oct26524630775
97760263545
103042128381
111321225096
1270a976b65
13396344a86
1420c051525
1512c11658b
hexb55331fd

3042128381 has 8 divisors (see below), whose sum is σ = 3092294400. Its totient is φ = 2992359312.

The previous prime is 3042128371. The next prime is 3042128387. The reversal of 3042128381 is 1838212403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3042128381 is a prime.

It is a super-2 number, since 2×30421283812 = 18509090172971362322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3042128387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83765 + ... + 114458.

It is an arithmetic number, because the mean of its divisors is an integer number (386536800).

Almost surely, 23042128381 is an apocalyptic number.

It is an amenable number.

3042128381 is a deficient number, since it is larger than the sum of its proper divisors (50166019).

3042128381 is a wasteful number, since it uses less digits than its factorization.

3042128381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198475.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 3042128381 is about 55155.4927545752. The cubic root of 3042128381 is about 1448.9692843067.

The spelling of 3042128381 in words is "three billion, forty-two million, one hundred twenty-eight thousand, three hundred eighty-one".

Divisors: 1 103 149 15347 198223 20416969 29535227 3042128381