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142016688 = 24321189657
BaseRepresentation
bin10000111011100…
…00000010110000
3100220020012021100
420131300002300
5242324013223
622031524400
73343056552
oct1035600260
9326205240
10142016688
117318a270
123b689700
1323565258
1414c0b4d2
15c704043
hex87700b0

142016688 has 60 divisors (see below), whose sum is σ = 433586088. Its totient is φ = 43034880.

The previous prime is 142016681. The next prime is 142016689. The reversal of 142016688 is 886610241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (142016681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43245 + ... + 46412.

Almost surely, 2142016688 is an apocalyptic number.

142016688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142016688 is an abundant number, since it is smaller than the sum of its proper divisors (291569400).

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

142016688 is a wasteful number, since it uses less digits than its factorization.

142016688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89682 (or 89673 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 142016688 is about 11917.0754801671. The cubic root of 142016688 is about 521.7307811562.

The spelling of 142016688 in words is "one hundred forty-two million, sixteen thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 264 396 528 792 1584 89657 179314 268971 358628 537942 717256 806913 986227 1075884 1434512 1613826 1972454 2151768 2958681 3227652 3944908 4303536 5917362 6455304 7889816 8876043 11834724 12910608 15779632 17752086 23669448 35504172 47338896 71008344 142016688