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142660514 = 271330257
BaseRepresentation
bin10001000000011…
…01001110100010
3100221102220102202
420200031032202
5243010114024
622053413202
73351410603
oct1040151642
9327386382
10142660514
1173589a57
123b93a202
132372c309
1414d37daa
15c7cebae
hex880d3a2

142660514 has 4 divisors (see below), whose sum is σ = 213990774. Its totient is φ = 71330256.

The previous prime is 142660499. The next prime is 142660523. The reversal of 142660514 is 415066241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140019889 + 2640625 = 11833^2 + 1625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35665127 + ... + 35665130.

Almost surely, 2142660514 is an apocalyptic number.

142660514 is a deficient number, since it is larger than the sum of its proper divisors (71330260).

142660514 is an equidigital number, since it uses as much as digits as its factorization.

142660514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71330259.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 142660514 is about 11944.0576857281. The cubic root of 142660514 is about 522.5180067511.

The spelling of 142660514 in words is "one hundred forty-two million, six hundred sixty thousand, five hundred fourteen".

Divisors: 1 2 71330257 142660514