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142673488 = 2470912577
BaseRepresentation
bin10001000000100…
…00011001010000
3100221110120020021
420200100121100
5243011022423
622053553224
73351463456
oct1040203120
9327416207
10142673488
1173598781
123b945814
13237351a9
1414d3c9d6
15c7d395d
hex8810650

142673488 has 20 divisors (see below), whose sum is σ = 276841780. Its totient is φ = 71230464.

The previous prime is 142673483. The next prime is 142673521. The reversal of 142673488 is 884376241.

It can be written as a sum of positive squares in 2 ways, for example, as 77580864 + 65092624 = 8808^2 + 8068^2 .

It is a super-2 number, since 2×1426734882 = 40711448356172288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142673483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5056 + ... + 17632.

It is an arithmetic number, because the mean of its divisors is an integer number (13842089).

Almost surely, 2142673488 is an apocalyptic number.

It is an amenable number.

142673488 is a deficient number, since it is larger than the sum of its proper divisors (134168292).

142673488 is a wasteful number, since it uses less digits than its factorization.

142673488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13294 (or 13288 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 142673488 is about 11944.6007886409. The cubic root of 142673488 is about 522.5338460863.

The spelling of 142673488 in words is "one hundred forty-two million, six hundred seventy-three thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 709 1418 2836 5672 11344 12577 25154 50308 100616 201232 8917093 17834186 35668372 71336744 142673488