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29106247 = 2310711827
BaseRepresentation
bin110111100001…
…0000001000111
32000202202021011
41233002001013
524422344442
62515503051
7502253602
oct157020107
960682234
1029106247
111547aa55
1298b7a87
136051241
143c19339
15284e117
hex1bc2047

29106247 has 8 divisors (see below), whose sum is σ = 30658176. Its totient is φ = 27578232.

The previous prime is 29106239. The next prime is 29106277. The reversal of 29106247 is 74260192.

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

It is a cyclic number.

It is not a de Polignac number, because 29106247 - 23 = 29106239 is a prime.

It is a super-2 number, since 2×291062472 = 1694347228850018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29106277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3453 + ... + 8374.

It is an arithmetic number, because the mean of its divisors is an integer number (3832272).

Almost surely, 229106247 is an apocalyptic number.

29106247 is a deficient number, since it is larger than the sum of its proper divisors (1551929).

29106247 is a wasteful number, since it uses less digits than its factorization.

29106247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11957.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 29106247 is about 5395.0205745669. The cubic root of 29106247 is about 307.6064258052.

It can be divided in two parts, 29 and 106247, that added together give a square (106276 = 3262).

The spelling of 29106247 in words is "twenty-nine million, one hundred six thousand, two hundred forty-seven".

Divisors: 1 23 107 2461 11827 272021 1265489 29106247