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29027997 = 333179439
BaseRepresentation
bin110111010111…
…0111010011101
32000121202221000
41232232322131
524412343442
62514100513
7501506505
oct156567235
960552830
1029027997
1115427189
12987a739
13602473b
143bd8a05
152835d4c
hex1baee9d

29027997 has 32 divisors (see below), whose sum is σ = 45056000. Its totient is φ = 18448560.

The previous prime is 29027987. The next prime is 29028011. The reversal of 29027997 is 79972092.

29027997 is a `hidden beast` number, since 290 + 279 + 97 = 666.

It is not a de Polignac number, because 29027997 - 28 = 29027741 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29027987) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 65904 + ... + 66342.

It is an arithmetic number, because the mean of its divisors is an integer number (1408000).

Almost surely, 229027997 is an apocalyptic number.

29027997 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

29027997 is a deficient number, since it is larger than the sum of its proper divisors (16028003).

29027997 is a wasteful number, since it uses less digits than its factorization.

29027997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 29027997 is about 5387.7636362409. The cubic root of 29027997 is about 307.3305193373.

The spelling of 29027997 in words is "twenty-nine million, twenty-seven thousand, nine hundred ninety-seven".

Divisors: 1 3 9 27 31 79 93 237 279 439 711 837 1317 2133 2449 3951 7347 11853 13609 22041 34681 40827 66123 104043 122481 312129 367443 936387 1075111 3225333 9675999 29027997