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29879930 = 2510512843
BaseRepresentation
bin111000111111…
…0111001111010
32002020001120002
41301332321322
530122124210
62544233002
7511655333
oct161767172
962201502
1029879930
1115959263
12a00b762
136262442
143d7b28a
1529534a5
hex1c7ee7a

29879930 has 16 divisors (see below), whose sum is σ = 53853984. Its totient is φ = 11936400.

The previous prime is 29879891. The next prime is 29879957. The reversal of 29879930 is 3997892.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9089 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (3365874).

Almost surely, 229879930 is an apocalyptic number.

29879930 is a deficient number, since it is larger than the sum of its proper divisors (23974054).

29879930 is a wasteful number, since it uses less digits than its factorization.

29879930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 29879930 is about 5466.2537445677. The cubic root of 29879930 is about 310.3081569798.

The spelling of 29879930 in words is "twenty-nine million, eight hundred seventy-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 1051 2102 2843 5255 5686 10510 14215 28430 2987993 5975986 14939965 29879930