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142047377 is a prime number
BaseRepresentation
bin10000111011101…
…11100010010001
3100220021202100222
420131313202101
5242331004002
622032322425
73343245203
oct1035674221
9326252328
10142047377
117320032a
123b6a3415
1323576204
1414c18773
15c70d1a2
hex8777891

142047377 has 2 divisors, whose sum is σ = 142047378. Its totient is φ = 142047376.

The previous prime is 142047349. The next prime is 142047431. The reversal of 142047377 is 773740241.

It is a happy number.

142047377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130965136 + 11082241 = 11444^2 + 3329^2 .

It is an emirp because it is prime and its reverse (773740241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142047377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142047277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71023688 + 71023689.

It is an arithmetic number, because the mean of its divisors is an integer number (71023689).

Almost surely, 2142047377 is an apocalyptic number.

It is an amenable number.

142047377 is a deficient number, since it is larger than the sum of its proper divisors (1).

142047377 is an equidigital number, since it uses as much as digits as its factorization.

142047377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 142047377 is about 11918.3630167905. The cubic root of 142047377 is about 521.7683594695.

The spelling of 142047377 in words is "one hundred forty-two million, forty-seven thousand, three hundred seventy-seven".