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142018068 = 223172311321
BaseRepresentation
bin10000111011100…
…00011000010100
3100220020021011110
420131300120110
5242324034233
622031535020
73343063563
oct1035603024
9326207143
10142018068
1173190305
123b68a470
1323565a7a
1414c0bbda
15c704663
hex8770614

142018068 has 72 divisors (see below), whose sum is σ = 363645184. Its totient is φ = 43084800.

The previous prime is 142018043. The next prime is 142018073. The reversal of 142018068 is 860810241.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 106848 + ... + 108168.

Almost surely, 2142018068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142018068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181822592).

142018068 is an abundant number, since it is smaller than the sum of its proper divisors (221627116).

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

142018068 is a wasteful number, since it uses less digits than its factorization.

142018068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 142018068 is about 11917.1333801380. The cubic root of 142018068 is about 521.7324710660.

The spelling of 142018068 in words is "one hundred forty-two million, eighteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 17 31 34 51 62 68 93 102 124 186 204 289 372 527 578 867 1054 1156 1321 1581 1734 2108 2642 3162 3468 3963 5284 6324 7926 8959 15852 17918 22457 26877 35836 40951 44914 53754 67371 81902 89828 107508 122853 134742 163804 245706 269484 381769 491412 696167 763538 1145307 1392334 1527076 2088501 2290614 2784668 4177002 4581228 8354004 11834839 23669678 35504517 47339356 71009034 142018068