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142562093 = 304946757
BaseRepresentation
bin10000111111101…
…01001100101101
3100221020220102112
420133311030231
5242443441333
622051333405
73350520632
oct1037651455
9327226375
10142562093
1173522013
123b8b1265
13236c658b
1414d10189
15c7b0948
hex87f532d

142562093 has 4 divisors (see below), whose sum is σ = 142611900. Its totient is φ = 142512288.

The previous prime is 142562059. The next prime is 142562117. The reversal of 142562093 is 390265241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390265241 = 974023353.

It can be written as a sum of positive squares in 2 ways, for example, as 74615044 + 67947049 = 8638^2 + 8243^2 .

It is a cyclic number.

It is not a de Polignac number, because 142562093 - 26 = 142562029 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 (142562003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20330 + ... + 26427.

It is an arithmetic number, because the mean of its divisors is an integer number (35652975).

Almost surely, 2142562093 is an apocalyptic number.

It is an amenable number.

142562093 is a deficient number, since it is larger than the sum of its proper divisors (49807).

142562093 is an equidigital number, since it uses as much as digits as its factorization.

142562093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49806.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 142562093 is about 11939.9368926305. The cubic root of 142562093 is about 522.3978179798.

The spelling of 142562093 in words is "one hundred forty-two million, five hundred sixty-two thousand, ninety-three".

Divisors: 1 3049 46757 142562093