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142507514 = 283858479
BaseRepresentation
bin10000111111001…
…11110111111010
3100221011010120002
420133213313322
5242440220024
622050233002
73350202542
oct1037476772
9327133502
10142507514
1173495006
123b885762
13236a7796
1414cd8322
15c79e6ae
hex87e7dfa

142507514 has 8 divisors (see below), whose sum is σ = 216336960. Its totient is φ = 70395196.

The previous prime is 142507499. The next prime is 142507523. The reversal of 142507514 is 415705241.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429074 + ... + 429405.

It is an arithmetic number, because the mean of its divisors is an integer number (27042120).

Almost surely, 2142507514 is an apocalyptic number.

142507514 is a deficient number, since it is larger than the sum of its proper divisors (73829446).

142507514 is an equidigital number, since it uses as much as digits as its factorization.

142507514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858564.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 142507514 is about 11937.6511089912. The cubic root of 142507514 is about 522.3311438983.

The spelling of 142507514 in words is "one hundred forty-two million, five hundred seven thousand, five hundred fourteen".

Divisors: 1 2 83 166 858479 1716958 71253757 142507514