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142133514 = 23231029953
BaseRepresentation
bin10000111100011…
…00100100001010
3100220110010112020
420132030210022
5242341233024
622034225310
73344054265
oct1036144412
9326403466
10142133514
117325a016
123b725236
13235a6493
1414c3bcdc
15c728979
hex878c90a

142133514 has 16 divisors (see below), whose sum is σ = 296626752. Its totient is φ = 45317888.

The previous prime is 142133483. The next prime is 142133521. The reversal of 142133514 is 415331241.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 514839 + ... + 515114.

It is an arithmetic number, because the mean of its divisors is an integer number (18539172).

Almost surely, 2142133514 is an apocalyptic number.

142133514 is an abundant number, since it is smaller than the sum of its proper divisors (154493238).

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

142133514 is a wasteful number, since it uses less digits than its factorization.

142133514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029981.

The product of its digits is 1440, while the sum is 24.

The square root of 142133514 is about 11921.9760945910. The cubic root of 142133514 is about 521.8738042881.

Adding to 142133514 its reverse (415331241), we get a palindrome (557464755).

The spelling of 142133514 in words is "one hundred forty-two million, one hundred thirty-three thousand, five hundred fourteen".

Divisors: 1 2 3 6 23 46 69 138 1029953 2059906 3089859 6179718 23688919 47377838 71066757 142133514