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29189029 = 148119709
BaseRepresentation
bin110111101011…
…0001110100101
32000220221211011
41233112032211
524433022104
62521342221
7503050132
oct157261645
960827734
1029189029
1115527171
129937971
13607cb1c
143c3b589
152868904
hex1bd63a5

29189029 has 4 divisors (see below), whose sum is σ = 29210220. Its totient is φ = 29167840.

The previous prime is 29189009. The next prime is 29189033. The reversal of 29189029 is 92098192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 15484225 = 3702^2 + 3935^2 .

It is a cyclic number.

It is not a de Polignac number, because 29189029 - 29 = 29188517 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29188982 and 29189000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29189009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8374 + ... + 11335.

It is an arithmetic number, because the mean of its divisors is an integer number (7302555).

Almost surely, 229189029 is an apocalyptic number.

It is an amenable number.

29189029 is a deficient number, since it is larger than the sum of its proper divisors (21191).

29189029 is a wasteful number, since it uses less digits than its factorization.

29189029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21190.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 29189029 is about 5402.6872017543. The cubic root of 29189029 is about 307.8977741650.

The spelling of 29189029 in words is "twenty-nine million, one hundred eighty-nine thousand, twenty-nine".

Divisors: 1 1481 19709 29189029