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1929136612 = 2213532932389
BaseRepresentation
bin111001011111100…
…0100100111100100
311222110000021221011
41302333010213210
512422324332422
6515232032004
765543250664
oct16277044744
94873007834
101929136612
118aaa46987
1245a092604
13249895870
141442d01a4
15b4566077
hex72fc49e4

1929136612 has 48 divisors (see below), whose sum is σ = 3718476720. Its totient is φ = 870225408.

The previous prime is 1929136597. The next prime is 1929136613. The reversal of 1929136612 is 2166319291.

It can be written as a sum of positive squares in 8 ways, for example, as 4910656 + 1924225956 = 2216^2 + 43866^2 .

It is not an unprimeable number, because it can be changed into a prime (1929136613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806314 + ... + 808702.

It is an arithmetic number, because the mean of its divisors is an integer number (77468265).

Almost surely, 21929136612 is an apocalyptic number.

It is an amenable number.

1929136612 is a deficient number, since it is larger than the sum of its proper divisors (1789340108).

1929136612 is a wasteful number, since it uses less digits than its factorization.

1929136612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2750 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The square root of 1929136612 is about 43921.9377077105. The cubic root of 1929136612 is about 1244.8613818561.

The spelling of 1929136612 in words is "one billion, nine hundred twenty-nine million, one hundred thirty-six thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 53 106 212 293 586 689 1172 1378 2389 2756 3809 4778 7618 9556 15236 15529 31057 31058 62114 62116 124228 126617 201877 253234 403754 506468 699977 807508 1399954 1646021 2799908 3292042 6584084 9099701 18199402 36398804 37098781 74197562 148395124 482284153 964568306 1929136612