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142745180 = 2257137259
BaseRepresentation
bin10001000001000…
…01111001011100
3100221121012120112
420200201321130
5243020321210
622055305152
73352212464
oct1040417134
9327535515
10142745180
1173637626
123b97b1b8
132375ba06
1414d5aba4
15c7e9d05
hex8821e5c

142745180 has 12 divisors (see below), whose sum is σ = 299764920. Its totient is φ = 57098064.

The previous prime is 142745171. The next prime is 142745191. The reversal of 142745180 is 81547241.

It is a happy number.

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, 3568610 + ... + 3568649.

It is an arithmetic number, because the mean of its divisors is an integer number (24980410).

Almost surely, 2142745180 is an apocalyptic number.

142745180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142745180 is an abundant number, since it is smaller than the sum of its proper divisors (157019740).

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

142745180 is a wasteful number, since it uses less digits than its factorization.

142745180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137268 (or 7137266 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 142745180 is about 11947.6014329237. The cubic root of 142745180 is about 522.6213541069.

The spelling of 142745180 in words is "one hundred forty-two million, seven hundred forty-five thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 7137259 14274518 28549036 35686295 71372590 142745180