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142968501 = 32134725999
BaseRepresentation
bin10001000010110…
…00011010110101
3100222000112220200
420201120122311
5243044443001
622104151113
73354132534
oct1041303265
9328015820
10142968501
117377a395
123ba68499
1323809560
1414db831b
15c841086
hex88586b5

142968501 has 24 divisors (see below), whose sum is σ = 227136000. Its totient is φ = 86105376.

The previous prime is 142968493. The next prime is 142968523. The reversal of 142968501 is 105869241.

142968501 is a `hidden beast` number, since 142 + 9 + 6 + 8 + 501 = 666.

It is not a de Polignac number, because 142968501 - 23 = 142968493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142968571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7501 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (9464000).

Almost surely, 2142968501 is an apocalyptic number.

It is an amenable number.

142968501 is a deficient number, since it is larger than the sum of its proper divisors (84167499).

142968501 is a wasteful number, since it uses less digits than its factorization.

142968501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26065 (or 26062 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 142968501 is about 11956.9436312128. The cubic root of 142968501 is about 522.8937544589.

The spelling of 142968501 in words is "one hundred forty-two million, nine hundred sixty-eight thousand, five hundred one".

Divisors: 1 3 9 13 39 47 117 141 423 611 1833 5499 25999 77997 233991 337987 1013961 1221953 3041883 3665859 10997577 15885389 47656167 142968501