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29831469 = 337926237
BaseRepresentation
bin111000111001…
…1000100101101
32002010121002020
41301303010231
530114101334
62543220353
7511364133
oct161630455
962117066
1029831469
1115925908
129ba76b9
136246375
143d67753
152943e49
hex1c7312d

29831469 has 8 divisors (see below), whose sum is σ = 39881760. Its totient is φ = 19834416.

The previous prime is 29831449. The next prime is 29831471. The reversal of 29831469 is 96413892.

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

It is not a de Polignac number, because 29831469 - 27 = 29831341 is a prime.

It is a super-2 number, since 2×298314692 = 1779833085395922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 29831469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29831429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11982 + ... + 14255.

It is an arithmetic number, because the mean of its divisors is an integer number (4985220).

Almost surely, 229831469 is an apocalyptic number.

It is an amenable number.

29831469 is a deficient number, since it is larger than the sum of its proper divisors (10050291).

29831469 is a wasteful number, since it uses less digits than its factorization.

29831469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26619.

The product of its digits is 93312, while the sum is 42.

The square root of 29831469 is about 5461.8192024270. The cubic root of 29831469 is about 310.1403076276.

The spelling of 29831469 in words is "twenty-nine million, eight hundred thirty-one thousand, four hundred sixty-nine".

Divisors: 1 3 379 1137 26237 78711 9943823 29831469