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142807135 = 5191503233
BaseRepresentation
bin10001000001100…
…01000001011111
3100221201100120011
420200301001133
5243024312020
622100504051
73352561222
oct1040610137
9327640504
10142807135
117367a129
123b9ab027
1323780c83
1414d755b9
15c80d35a
hex883105f

142807135 has 8 divisors (see below), whose sum is σ = 180388080. Its totient is φ = 108232704.

The previous prime is 142807129. The next prime is 142807151. The reversal of 142807135 is 531708241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142807135 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142807097 and 142807106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751522 + ... + 751711.

It is an arithmetic number, because the mean of its divisors is an integer number (22548510).

Almost surely, 2142807135 is an apocalyptic number.

142807135 is a deficient number, since it is larger than the sum of its proper divisors (37580945).

142807135 is a wasteful number, since it uses less digits than its factorization.

142807135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503257.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 142807135 is about 11950.1939314808. The cubic root of 142807135 is about 522.6969534434.

It can be divided in two parts, 142807 and 135, that multiplied together give a triangular number (19278945 = T6209).

The spelling of 142807135 in words is "one hundred forty-two million, eight hundred seven thousand, one hundred thirty-five".

Divisors: 1 5 19 95 1503233 7516165 28561427 142807135