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142146524 = 221319143873
BaseRepresentation
bin10000111100011…
…11101111011100
3100220110210101002
420132033233130
5242342142044
622034405432
73344140232
oct1036175734
9326423332
10142146524
1173268873
123b730878
13235ac390
1414c42952
15c72c74e
hex878fbdc

142146524 has 24 divisors (see below), whose sum is σ = 281993040. Its totient is φ = 62152704.

The previous prime is 142146523. The next prime is 142146527. The reversal of 142146524 is 425641241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142146523) 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, 70949 + ... + 72924.

It is an arithmetic number, because the mean of its divisors is an integer number (11749710).

Almost surely, 2142146524 is an apocalyptic number.

It is an amenable number.

142146524 is a deficient number, since it is larger than the sum of its proper divisors (139846516).

142146524 is a wasteful number, since it uses less digits than its factorization.

142146524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143909 (or 143907 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 142146524 is about 11922.5217131276. The cubic root of 142146524 is about 521.8897268078.

Adding to 142146524 its reverse (425641241), we get a palindrome (567787765).

The spelling of 142146524 in words is "one hundred forty-two million, one hundred forty-six thousand, five hundred twenty-four".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 143873 287746 575492 1870349 2733587 3740698 5467174 7481396 10934348 35536631 71073262 142146524