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142387325 = 5217335029
BaseRepresentation
bin10000111110010…
…10100001111101
3100220221000200122
420133022201331
5242422343300
622043504325
73346162253
oct1037124175
9326830618
10142387325
1173412783
123b8280a5
1323664b72
1414ca65d3
15c778c85
hex87ca87d

142387325 has 12 divisors (see below), whose sum is σ = 186946740. Its totient is φ = 107208960.

The previous prime is 142387321. The next prime is 142387327. The reversal of 142387325 is 523783241.

It can be written as a sum of positive squares in 6 ways, for example, as 2627641 + 139759684 = 1621^2 + 11822^2 .

It is not a de Polignac number, because 142387325 - 22 = 142387321 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142387321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167090 + ... + 167939.

It is an arithmetic number, because the mean of its divisors is an integer number (15578895).

Almost surely, 2142387325 is an apocalyptic number.

It is an amenable number.

142387325 is a deficient number, since it is larger than the sum of its proper divisors (44559415).

142387325 is a wasteful number, since it uses less digits than its factorization.

142387325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335056 (or 335051 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 142387325 is about 11932.6160166160. The cubic root of 142387325 is about 522.1842601464.

The spelling of 142387325 in words is "one hundred forty-two million, three hundred eighty-seven thousand, three hundred twenty-five".

Divisors: 1 5 17 25 85 425 335029 1675145 5695493 8375725 28477465 142387325