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34247142 = 2321902619
BaseRepresentation
bin1000001010100…
…1000111100110
32101102221020200
42002221013212
532231402032
63222011330
7564044616
oct202510746
971387220
1034247142
1118371426
12b576b46
1371311a7
144796a46
15301747c
hex20a91e6

34247142 has 12 divisors (see below), whose sum is σ = 74202180. Its totient is φ = 11415708.

The previous prime is 34247137. The next prime is 34247149. The reversal of 34247142 is 24174243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34247149) 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 5 ways as a sum of consecutive naturals, for example, 951292 + ... + 951327.

It is an arithmetic number, because the mean of its divisors is an integer number (6183515).

Almost surely, 234247142 is an apocalyptic number.

34247142 is an abundant number, since it is smaller than the sum of its proper divisors (39955038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34247142 is a wasteful number, since it uses less digits than its factorization.

34247142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902627 (or 1902624 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 34247142 is about 5852.1057748472. The cubic root of 34247142 is about 324.7442311146.

The spelling of 34247142 in words is "thirty-four million, two hundred forty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 1902619 3805238 5707857 11415714 17123571 34247142