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142385741 = 1495471747
BaseRepresentation
bin10000111110010…
…10001001001101
3100220220221111222
420133022021031
5242422320431
622043453125
73346154531
oct1037121115
9326827458
10142385741
1173411573
123b8271a5
1323664224
1414ca5bc1
15c77857b
hex87ca24d

142385741 has 8 divisors (see below), whose sum is σ = 143685600. Its totient is φ = 141090768.

The previous prime is 142385717. The next prime is 142385777. The reversal of 142385741 is 147583241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142385741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142385141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 80630 + ... + 82376.

It is an arithmetic number, because the mean of its divisors is an integer number (17960700).

Almost surely, 2142385741 is an apocalyptic number.

It is an amenable number.

142385741 is a deficient number, since it is larger than the sum of its proper divisors (1299859).

142385741 is a wasteful number, since it uses less digits than its factorization.

142385741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its digits is 26880, while the sum is 35.

The square root of 142385741 is about 11932.5496437266. The cubic root of 142385741 is about 522.1823237781.

The spelling of 142385741 in words is "one hundred forty-two million, three hundred eighty-five thousand, seven hundred forty-one".

Divisors: 1 149 547 1747 81503 260303 955609 142385741