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29888142 = 2317293021
BaseRepresentation
bin111001000000…
…0111010001110
32002020110211020
41302000322032
530122410032
62544335010
7512021304
oct162007216
962213736
1029888142
1115964449
12a014466
1362660bb
143d80274
152955b2c
hex1c80e8e

29888142 has 16 divisors (see below), whose sum is σ = 63292752. Its totient is φ = 9376640.

The previous prime is 29888141. The next prime is 29888143. The reversal of 29888142 is 24188892.

It is an interprime number because it is at equal distance from previous prime (29888141) and next prime (29888143).

It is a junction number, because it is equal to n+sod(n) for n = 29888094 and 29888103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29888141) 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, 146409 + ... + 146612.

It is an arithmetic number, because the mean of its divisors is an integer number (3955797).

Almost surely, 229888142 is an apocalyptic number.

29888142 is an abundant number, since it is smaller than the sum of its proper divisors (33404610).

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

29888142 is a wasteful number, since it uses less digits than its factorization.

29888142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293043.

The product of its digits is 73728, while the sum is 42.

The square root of 29888142 is about 5467.0048472633. The cubic root of 29888142 is about 310.3365820483.

The spelling of 29888142 in words is "twenty-nine million, eight hundred eighty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 293021 586042 879063 1758126 4981357 9962714 14944071 29888142