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29432931 = 311891907
BaseRepresentation
bin111000001000…
…1110001100011
32001101100101120
41300101301203
530013323211
62530503323
7505114203
oct160216143
961340346
1029432931
1115683440
129a34b43
136136b48
143ca2403
1528b5d06
hex1c11c63

29432931 has 8 divisors (see below), whose sum is σ = 42811584. Its totient is φ = 17838120.

The previous prime is 29432929. The next prime is 29432969. The reversal of 29432931 is 13923492.

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

It is not a de Polignac number, because 29432931 - 21 = 29432929 is a prime.

It is a super-2 number, since 2×294329312 = 1732594854501522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 891907 = 29432931 / (2 + 9 + 4 + 3 + 2 + 9 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 29432892 and 29432901.

It is not an unprimeable number, because it can be changed into a prime (29432911) 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, 445921 + ... + 445986.

It is an arithmetic number, because the mean of its divisors is an integer number (5351448).

Almost surely, 229432931 is an apocalyptic number.

29432931 is a deficient number, since it is larger than the sum of its proper divisors (13378653).

29432931 is a wasteful number, since it uses less digits than its factorization.

29432931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891921.

The product of its digits is 11664, while the sum is 33.

The square root of 29432931 is about 5425.2125303992. The cubic root of 29432931 is about 308.7529890929.

The spelling of 29432931 in words is "twenty-nine million, four hundred thirty-two thousand, nine hundred thirty-one".

Divisors: 1 3 11 33 891907 2675721 9810977 29432931