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142023308 = 2275072261
BaseRepresentation
bin10000111011100…
…01101010001100
3100220020112100112
420131301222030
5242324221213
622032015152
73343115060
oct1035615214
9326215315
10142023308
1173194239
123b6914b8
132356827b
1414c0daa0
15c705ea8
hex8771a8c

142023308 has 12 divisors (see below), whose sum is σ = 284046672. Its totient is φ = 60867120.

The previous prime is 142023293. The next prime is 142023319. The reversal of 142023308 is 803320241.

142023308 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2536103 + ... + 2536158.

It is an arithmetic number, because the mean of its divisors is an integer number (23670556).

Almost surely, 2142023308 is an apocalyptic number.

It is an amenable number.

142023308 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.

142023308 is a wasteful number, since it uses less digits than its factorization.

142023308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072272 (or 5072270 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 142023308 is about 11917.3532296395. The cubic root of 142023308 is about 521.7388877249.

Adding to 142023308 its reverse (803320241), we get a palindrome (945343549).

The spelling of 142023308 in words is "one hundred forty-two million, twenty-three thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 5072261 10144522 20289044 35505827 71011654 142023308