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142842988770 = 23518899251941
BaseRepresentation
bin1000010100001000011…
…0110000100011100010
3111122200222021200011120
42011002012300203202
54320020301120040
6145342100553110
713214532241206
oct2050206604342
9448628250146
10142842988770
1155641163739
12238259b2796
1310615891281
146cb1042b06
153ab05ed7d0
hex21421b08e2

142842988770 has 32 divisors (see below), whose sum is σ = 342842673600. Its totient is φ = 38089296960.

The previous prime is 142842988759. The next prime is 142842988793. The reversal of 142842988770 is 77889248241.

It is a super-2 number, since 2×1428429887702 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441000 + ... + 692940.

It is an arithmetic number, because the mean of its divisors is an integer number (10713833550).

Almost surely, 2142842988770 is an apocalyptic number.

142842988770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142842988770 is an abundant number, since it is smaller than the sum of its proper divisors (199999684830).

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

142842988770 is a wasteful number, since it uses less digits than its factorization.

142842988770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270850.

The product of its (nonzero) digits is 14450688, while the sum is 60.

The spelling of 142842988770 in words is "one hundred forty-two billion, eight hundred forty-two million, nine hundred eighty-eight thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 18899 37798 56697 94495 113394 188990 251941 283485 503882 566970 755823 1259705 1511646 2519410 3779115 7558230 4761432959 9522865918 14284298877 23807164795 28568597754 47614329590 71421494385 142842988770