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3031489129 = 6134945333
BaseRepresentation
bin1011010010110000…
…1101101001101001
321211021021121022011
42310230031221221
522202030123004
61220451155521
7135060142504
oct26454155151
97737247264
103031489129
111316218719
127072a5ba1
1339408b266
1420a88213b
1512b214004
hexb4b0da69

3031489129 has 4 divisors (see below), whose sum is σ = 3036435076. Its totient is φ = 3026543184.

The previous prime is 3031489127. The next prime is 3031489141. The reversal of 3031489129 is 9219841303.

3031489129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9219841303 = 43392124877.

It can be written as a sum of positive squares in 2 ways, for example, as 882981225 + 2148507904 = 29715^2 + 46352^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031489129 - 21 = 3031489127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3031489091 and 3031489100.

It is not an unprimeable number, because it can be changed into a prime (3031489127) 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, 2472054 + ... + 2473279.

It is an arithmetic number, because the mean of its divisors is an integer number (759108769).

Almost surely, 23031489129 is an apocalyptic number.

It is an amenable number.

3031489129 is a deficient number, since it is larger than the sum of its proper divisors (4945947).

3031489129 is an equidigital number, since it uses as much as digits as its factorization.

3031489129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945946.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3031489129 is about 55058.9604787450. The cubic root of 3031489129 is about 1447.2781486006.

The spelling of 3031489129 in words is "three billion, thirty-one million, four hundred eighty-nine thousand, one hundred twenty-nine".

Divisors: 1 613 4945333 3031489129