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29997038 = 277319403
BaseRepresentation
bin111001001101…
…1011111101110
32002110000012102
41302123133232
530134401123
62550535102
7512653631
oct162333756
962400172
1029997038
1115a29245
12a067492
1362a3836
143dabc18
152978028
hex1c9b7ee

29997038 has 8 divisors (see below), whose sum is σ = 45056088. Its totient is φ = 14978344.

The previous prime is 29997013. The next prime is 29997043. The reversal of 29997038 is 83079992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 29996983 and 29997001.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8156 + ... + 11247.

It is an arithmetic number, because the mean of its divisors is an integer number (5632011).

Almost surely, 229997038 is an apocalyptic number.

29997038 is a deficient number, since it is larger than the sum of its proper divisors (15059050).

29997038 is a wasteful number, since it uses less digits than its factorization.

29997038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20178.

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

The square root of 29997038 is about 5476.9551760079. The cubic root of 29997038 is about 310.7130240114.

The spelling of 29997038 in words is "twenty-nine million, nine hundred ninety-seven thousand, thirty-eight".

Divisors: 1 2 773 1546 19403 38806 14998519 29997038