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8345142 = 23213191877
BaseRepresentation
bin11111110101011000110110
3120200222101100
4133311120312
54114021032
6454510530
7130634601
oct37653066
916628340
108345142
11478a913
122965446
131962570
141173338
15aec97c
hex7f5636

8345142 has 48 divisors (see below), whose sum is σ = 20507760. Its totient is φ = 2431296.

The previous prime is 8345119. The next prime is 8345153. The reversal of 8345142 is 2415438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3508 + ... + 5384.

It is an arithmetic number, because the mean of its divisors is an integer number (427245).

Almost surely, 28345142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8345142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10253880).

8345142 is an abundant number, since it is smaller than the sum of its proper divisors (12162618).

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

8345142 is a wasteful number, since it uses less digits than its factorization.

8345142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1914 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 8345142 is about 2888.7959429492. The cubic root of 8345142 is about 202.8357849157.

The spelling of 8345142 in words is "eight million, three hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 13 18 19 26 38 39 57 78 114 117 171 234 247 342 494 741 1482 1877 2223 3754 4446 5631 11262 16893 24401 33786 35663 48802 71326 73203 106989 146406 213978 219609 320967 439218 463619 641934 927238 1390857 2781714 4172571 8345142