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29885443 = 72609907
BaseRepresentation
bin111001000000…
…0010000000011
32002020100010021
41302000100003
530122313233
62544314311
7512010400
oct162002003
962210107
1029885443
1115962415
12a012997
136264ac3
143d7d2a7
152954e2d
hex1c80403

29885443 has 6 divisors (see below), whose sum is σ = 34764756. Its totient is φ = 25616052.

The previous prime is 29885437. The next prime is 29885459. The reversal of 29885443 is 34458892.

It is not a de Polignac number, because 29885443 - 25 = 29885411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29885443.

It is not an unprimeable number, because it can be changed into a prime (29885413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304905 + ... + 305002.

It is an arithmetic number, because the mean of its divisors is an integer number (5794126).

Almost surely, 229885443 is an apocalyptic number.

29885443 is a deficient number, since it is larger than the sum of its proper divisors (4879313).

29885443 is an equidigital number, since it uses as much as digits as its factorization.

29885443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609921 (or 609914 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 29885443 is about 5466.7579972046. The cubic root of 29885443 is about 310.3272402872.

The spelling of 29885443 in words is "twenty-nine million, eight hundred eighty-five thousand, four hundred forty-three".

Divisors: 1 7 49 609907 4269349 29885443