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142680583 = 163875341
BaseRepresentation
bin10001000000100…
…10001000000111
3100221110220222001
420200102020013
5243011234313
622054050131
73351523243
oct1040221007
9327426861
10142680583
11735a3041
123b949947
13237384a6
1414d41423
15c7d5add
hex8812207

142680583 has 4 divisors (see below), whose sum is σ = 143556088. Its totient is φ = 141805080.

The previous prime is 142680553. The next prime is 142680619. The reversal of 142680583 is 385086241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 385086241 = 614362687.

It is a cyclic number.

It is not a de Polignac number, because 142680583 - 221 = 140583431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142680553) 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, 437508 + ... + 437833.

It is an arithmetic number, because the mean of its divisors is an integer number (35889022).

Almost surely, 2142680583 is an apocalyptic number.

142680583 is a deficient number, since it is larger than the sum of its proper divisors (875505).

142680583 is an equidigital number, since it uses as much as digits as its factorization.

142680583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875504.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 142680583 is about 11944.8977810612. The cubic root of 142680583 is about 522.5425076259.

The spelling of 142680583 in words is "one hundred forty-two million, six hundred eighty thousand, five hundred eighty-three".

Divisors: 1 163 875341 142680583