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29138966 = 247309989
BaseRepresentation
bin110111100101…
…0000000010110
32000211102010222
41233022000112
524424421331
62520314342
7502451153
oct157120026
960742128
1029138966
11154a259a
1299129b2
1360630bc
143c2722a
152858b7b
hex1bca016

29138966 has 8 divisors (see below), whose sum is σ = 44638560. Its totient is φ = 14259448.

The previous prime is 29138959. The next prime is 29138981. The reversal of 29138966 is 66983192.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154901 + ... + 155088.

It is an arithmetic number, because the mean of its divisors is an integer number (5579820).

Almost surely, 229138966 is an apocalyptic number.

29138966 is a deficient number, since it is larger than the sum of its proper divisors (15499594).

29138966 is a wasteful number, since it uses less digits than its factorization.

29138966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310038.

The product of its digits is 139968, while the sum is 44.

The square root of 29138966 is about 5398.0520560662. The cubic root of 29138966 is about 307.7216451226.

The spelling of 29138966 in words is "twenty-nine million, one hundred thirty-eight thousand, nine hundred sixty-six".

Divisors: 1 2 47 94 309989 619978 14569483 29138966