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142872258 = 2323812043
BaseRepresentation
bin10001000010000…
…00111011000010
3100221211122220010
420201000323002
5243033403013
622102125350
73353252124
oct1041007302
9327748803
10142872258
1173714051
123ba20856
13237a47c9
1414d91214
15c8227c3
hex8840ec2

142872258 has 8 divisors (see below), whose sum is σ = 285744528. Its totient is φ = 47624084.

The previous prime is 142872253. The next prime is 142872283. The reversal of 142872258 is 852278241.

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

142872258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (142872253) 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, 11906016 + ... + 11906027.

It is an arithmetic number, because the mean of its divisors is an integer number (35718066).

Almost surely, 2142872258 is an apocalyptic number.

142872258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142872258 is a wasteful number, since it uses less digits than its factorization.

142872258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23812048.

The product of its digits is 71680, while the sum is 39.

The square root of 142872258 is about 11952.9183884104. The cubic root of 142872258 is about 522.7763949007.

The spelling of 142872258 in words is "one hundred forty-two million, eight hundred seventy-two thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 23812043 47624086 71436129 142872258