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142975318 = 273979283
BaseRepresentation
bin10001000010110…
…10000101010110
3100222000220021011
420201122011112
5243100202233
622104242434
73354161443
oct1041320526
9328026234
10142975318
1173784522
123ba7041a
132380c6a5
1414dba9ca
15c8430cd
hex885a156

142975318 has 8 divisors (see below), whose sum is σ = 217401048. Its totient is φ = 70508304.

The previous prime is 142975309. The next prime is 142975333. The reversal of 142975318 is 813579241.

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

It is a super-2 number, since 2×1429753182 = 40883883114402248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489496 + ... + 489787.

It is an arithmetic number, because the mean of its divisors is an integer number (27175131).

Almost surely, 2142975318 is an apocalyptic number.

142975318 is a deficient number, since it is larger than the sum of its proper divisors (74425730).

142975318 is an equidigital number, since it uses as much as digits as its factorization.

142975318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979358.

The product of its digits is 60480, while the sum is 40.

The square root of 142975318 is about 11957.2286923016. The cubic root of 142975318 is about 522.9020651708.

The spelling of 142975318 in words is "one hundred forty-two million, nine hundred seventy-five thousand, three hundred eighteen".

Divisors: 1 2 73 146 979283 1958566 71487659 142975318