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142949514 = 2323824919
BaseRepresentation
bin10001000010100…
…11110010001010
3100221222120212110
420201103302022
5243043341024
622103523150
73354023301
oct1041236212
9327876773
10142949514
11737670a4
123ba594b6
1323800a16
1414db1438
15c83a629
hex8853c8a

142949514 has 8 divisors (see below), whose sum is σ = 285899040. Its totient is φ = 47649836.

The previous prime is 142949459. The next prime is 142949551. The reversal of 142949514 is 415949241.

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

142949514 is an admirable number.

It is a super-3 number, since 3×1429495143 (a number of 25 digits) contains 333 as substring.

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, 11912454 + ... + 11912465.

It is an arithmetic number, because the mean of its divisors is an integer number (35737380).

Almost surely, 2142949514 is an apocalyptic number.

142949514 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.

142949514 is a wasteful number, since it uses less digits than its factorization.

142949514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23824924.

The product of its digits is 51840, while the sum is 39.

The square root of 142949514 is about 11956.1496310476. The cubic root of 142949514 is about 522.8706057159.

The spelling of 142949514 in words is "one hundred forty-two million, nine hundred forty-nine thousand, five hundred fourteen".

Divisors: 1 2 3 6 23824919 47649838 71474757 142949514