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142031959840 = 255887699749
BaseRepresentation
bin1000010001000111000…
…0111011011100100000
3111120121110012010122001
42010101300323130200
54311340140203330
6145125405453344
713155453511321
oct2042160733440
9446543163561
10142031959840
115526537a6a1
122363a271254
13105168493b4
146c35446448
153a642e89ca
hex2111c3b720

142031959840 has 24 divisors (see below), whose sum is σ = 335550505500. Its totient is φ = 56812783872.

The previous prime is 142031959837. The next prime is 142031959841. The reversal of 142031959840 is 48959130241.

It can be written as a sum of positive squares in 2 ways, for example, as 135916094224 + 6115865616 = 368668^2 + 78204^2 .

It is not an unprimeable number, because it can be changed into a prime (142031959841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443849715 + ... + 443850034.

Almost surely, 2142031959840 is an apocalyptic number.

142031959840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142031959840 is an abundant number, since it is smaller than the sum of its proper divisors (193518545660).

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

142031959840 is an equidigital number, since it uses as much as digits as its factorization.

142031959840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887699764 (or 887699756 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 142031959840 in words is "one hundred forty-two billion, thirty-one million, nine hundred fifty-nine thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 887699749 1775399498 3550798996 4438498745 7101597992 8876997490 14203195984 17753994980 28406391968 35507989960 71015979920 142031959840