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142007743609 = 187871755879
BaseRepresentation
bin1000010001000001010…
…0100011010001111001
3111120112202121211012121
42010100110203101321
54311312440243414
6145123142441241
713155040622134
oct2042024432171
9446482554177
10142007743609
115525273a686
1223632133221
131051181ab74
146c3214121b
153a62113724
hex2110523479

142007743609 has 4 divisors (see below), whose sum is σ = 142008687360. Its totient is φ = 142006799860.

The previous prime is 142007743523. The next prime is 142007743621. The reversal of 142007743609 is 906347700241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142007743609 - 215 = 142007710841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142007743639) 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, 190069 + ... + 565810.

It is an arithmetic number, because the mean of its divisors is an integer number (35502171840).

Almost surely, 2142007743609 is an apocalyptic number.

It is an amenable number.

142007743609 is a deficient number, since it is larger than the sum of its proper divisors (943751).

142007743609 is an equidigital number, since it uses as much as digits as its factorization.

142007743609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943750.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 142007743609 in words is "one hundred forty-two billion, seven million, seven hundred forty-three thousand, six hundred nine".

Divisors: 1 187871 755879 142007743609