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142055313 = 347351771
BaseRepresentation
bin10000111011110…
…01011110010001
3100220022011020220
420131321132101
5242331232223
622032423253
73343310301
oct1035713621
9326264226
10142055313
1173206294
123b6a7b29
13235799ca
1414c1b601
15c7106e3
hex8779791

142055313 has 4 divisors (see below), whose sum is σ = 189407088. Its totient is φ = 94703540.

The previous prime is 142055279. The next prime is 142055323. The reversal of 142055313 is 313550241.

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.

It is a cyclic number.

It is not a de Polignac number, because 142055313 - 217 = 141924241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142055323) 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, 23675883 + ... + 23675888.

It is an arithmetic number, because the mean of its divisors is an integer number (47351772).

Almost surely, 2142055313 is an apocalyptic number.

It is an amenable number.

142055313 is a deficient number, since it is larger than the sum of its proper divisors (47351775).

142055313 is an equidigital number, since it uses as much as digits as its factorization.

142055313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47351774.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 142055313 is about 11918.6959437683. The cubic root of 142055313 is about 521.7780761257.

The spelling of 142055313 in words is "one hundred forty-two million, fifty-five thousand, three hundred thirteen".

Divisors: 1 3 47351771 142055313