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142239316 = 22296431907
BaseRepresentation
bin10000111101001…
…10011001010100
3100220122111122211
420132212121110
5242403124231
622040403204
73345004612
oct1036463124
9326574584
10142239316
117332155a
123b776504
132361269b
1414c686b2
15c749eb1
hex87a6654

142239316 has 24 divisors (see below), whose sum is σ = 258037920. Its totient is φ = 68524512.

The previous prime is 142239311. The next prime is 142239329. The reversal of 142239316 is 613932241.

It is a super-3 number, since 3×1422393163 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142239311) 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, 73635 + ... + 75541.

It is an arithmetic number, because the mean of its divisors is an integer number (10751580).

Almost surely, 2142239316 is an apocalyptic number.

It is an amenable number.

142239316 is a deficient number, since it is larger than the sum of its proper divisors (115798604).

142239316 is a wasteful number, since it uses less digits than its factorization.

142239316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583 (or 2581 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 142239316 is about 11926.4125368864. The cubic root of 142239316 is about 522.0032637798.

The spelling of 142239316 in words is "one hundred forty-two million, two hundred thirty-nine thousand, three hundred sixteen".

Divisors: 1 2 4 29 58 116 643 1286 1907 2572 3814 7628 18647 37294 55303 74588 110606 221212 1226201 2452402 4904804 35559829 71119658 142239316