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142425577 = 7191070869
BaseRepresentation
bin10000111110100…
…11110111101001
3100220222222011101
420133103313221
5242430104302
622044401401
73346411630
oct1037236751
9326888141
10142425577
1173439498
123b846261
13236793b8
1414cb6517
15c785287
hex87d3de9

142425577 has 8 divisors (see below), whose sum is σ = 171339200. Its totient is φ = 115653744.

The previous prime is 142425559. The next prime is 142425599. The reversal of 142425577 is 775524241.

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

It is a cyclic number.

It is not a de Polignac number, because 142425577 - 219 = 141901289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142425277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535302 + ... + 535567.

It is an arithmetic number, because the mean of its divisors is an integer number (21417400).

Almost surely, 2142425577 is an apocalyptic number.

It is an amenable number.

142425577 is a deficient number, since it is larger than the sum of its proper divisors (28913623).

142425577 is a wasteful number, since it uses less digits than its factorization.

142425577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070895.

The product of its digits is 78400, while the sum is 37.

The square root of 142425577 is about 11934.2187427582. The cubic root of 142425577 is about 522.2310171263.

The spelling of 142425577 in words is "one hundred forty-two million, four hundred twenty-five thousand, five hundred seventy-seven".

Divisors: 1 7 19 133 1070869 7496083 20346511 142425577