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142808258 = 2312303359
BaseRepresentation
bin10001000001100…
…01010011000010
3100221201102002202
420200301103002
5243024331013
622100513202
73352564415
oct1040612302
9327642082
10142808258
117367aa5a
123b9ab802
1323781638
1414d75b7c
15c80d858
hex88314c2

142808258 has 8 divisors (see below), whose sum is σ = 221122560. Its totient is φ = 69100740.

The previous prime is 142808257. The next prime is 142808269. The reversal of 142808258 is 852808241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142808251) 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, 1151618 + ... + 1151741.

It is an arithmetic number, because the mean of its divisors is an integer number (27640320).

Almost surely, 2142808258 is an apocalyptic number.

142808258 is a deficient number, since it is larger than the sum of its proper divisors (78314302).

142808258 is a wasteful number, since it uses less digits than its factorization.

142808258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303392.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 142808258 is about 11950.2409180736. The cubic root of 142808258 is about 522.6983235597.

The spelling of 142808258 in words is "one hundred forty-two million, eight hundred eight thousand, two hundred fifty-eight".

Divisors: 1 2 31 62 2303359 4606718 71404129 142808258