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3130127829 = 32347791981
BaseRepresentation
bin1011101010010001…
…1111010111010101
322002010212222011100
42322210133113111
522402303042304
61234333300313
7140365435053
oct27244372725
98063788140
103130127829
11136696a404
12734334699
133ab64625a
142199db1d3
15134bea439
hexba91f5d5

3130127829 has 6 divisors (see below), whose sum is σ = 4521295766. Its totient is φ = 2086751880.

The previous prime is 3130127827. The next prime is 3130127851. The reversal of 3130127829 is 9287210313.

It can be written as a sum of positive squares in only one way, i.e., 2776763025 + 353364804 = 52695^2 + 18798^2 .

It is not a de Polignac number, because 3130127829 - 21 = 3130127827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130127793 and 3130127802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130127827) 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 5 ways as a sum of consecutive naturals, for example, 173895982 + ... + 173895999.

Almost surely, 23130127829 is an apocalyptic number.

It is an amenable number.

3130127829 is a deficient number, since it is larger than the sum of its proper divisors (1391167937).

3130127829 is a wasteful number, since it uses less digits than its factorization.

3130127829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347791987 (or 347791984 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 3130127829 is about 55947.5453348938. The cubic root of 3130127829 is about 1462.8081047999.

The spelling of 3130127829 in words is "three billion, one hundred thirty million, one hundred twenty-seven thousand, eight hundred twenty-nine".

Divisors: 1 3 9 347791981 1043375943 3130127829