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129053884 = 2297733023
BaseRepresentation
bin1111011000100…
…11010010111100
322222211121122111
413230103102330
5231014211014
620450023404
73124640251
oct754232274
9288747574
10129053884
1166936103
1237277b64
1320976c5b
14131d5428
15b4e32c4
hex7b134bc

129053884 has 12 divisors (see below), whose sum is σ = 226082304. Its totient is φ = 64458944.

The previous prime is 129053867. The next prime is 129053917. The reversal of 129053884 is 488350921.

It is a super-3 number, since 3×1290538843 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12604 + ... + 20419.

It is an arithmetic number, because the mean of its divisors is an integer number (18840192).

Almost surely, 2129053884 is an apocalyptic number.

It is an amenable number.

129053884 is a deficient number, since it is larger than the sum of its proper divisors (97028420).

129053884 is a wasteful number, since it uses less digits than its factorization.

129053884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34004 (or 34002 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 129053884 is about 11360.1885547732. The cubic root of 129053884 is about 505.3477773030.

The spelling of 129053884 in words is "one hundred twenty-nine million, fifty-three thousand, eight hundred eighty-four".

Divisors: 1 2 4 977 1954 3908 33023 66046 132092 32263471 64526942 129053884