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142574128 = 2440921787
BaseRepresentation
bin10000111111110…
…00001000110000
3100221021111221021
420133320020300
5242444333003
622051505224
73350601004
oct1037701060
9327244837
10142574128
1173530064
123b8b8214
13236cbbb8
1414d14704
15c7b42bd
hex87f8230

142574128 has 20 divisors (see below), whose sum is σ = 276925480. Its totient is φ = 71109504.

The previous prime is 142574123. The next prime is 142574129. The reversal of 142574128 is 821475241.

It is a junction number, because it is equal to n+sod(n) for n = 142574093 and 142574102.

It is not an unprimeable number, because it can be changed into a prime (142574123) 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, 4350 + ... + 17437.

It is an arithmetic number, because the mean of its divisors is an integer number (13846274).

Almost surely, 2142574128 is an apocalyptic number.

It is an amenable number.

142574128 is a deficient number, since it is larger than the sum of its proper divisors (134351352).

142574128 is a wasteful number, since it uses less digits than its factorization.

142574128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22204 (or 22198 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 142574128 is about 11940.4408628827. The cubic root of 142574128 is about 522.4125177285.

The spelling of 142574128 in words is "one hundred forty-two million, five hundred seventy-four thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 409 818 1636 3272 6544 21787 43574 87148 174296 348592 8910883 17821766 35643532 71287064 142574128