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142932061 = 1139912539
BaseRepresentation
bin10001000010011…
…11100001011101
3100221221200221001
420201033201131
5243042311221
622103310301
73353621356
oct1041174135
9327850831
10142932061
1173754a78
123ba4b391
13237c5aac
1414da8d2d
15c835391
hex884f85d

142932061 has 4 divisors (see below), whose sum is σ = 142956000. Its totient is φ = 142908124.

The previous prime is 142932047. The next prime is 142932091. The reversal of 142932061 is 160239241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142932061 - 27 = 142931933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142932011) 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 3 ways as a sum of consecutive naturals, for example, 5130 + ... + 17668.

It is an arithmetic number, because the mean of its divisors is an integer number (35739000).

Almost surely, 2142932061 is an apocalyptic number.

It is an amenable number.

142932061 is a deficient number, since it is larger than the sum of its proper divisors (23939).

142932061 is a wasteful number, since it uses less digits than its factorization.

142932061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 142932061 is about 11955.4197333260. The cubic root of 142932061 is about 522.8493254008.

The spelling of 142932061 in words is "one hundred forty-two million, nine hundred thirty-two thousand, sixty-one".

Divisors: 1 11399 12539 142932061