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142423043 = 7163124823
BaseRepresentation
bin10000111110100…
…11010000000011
3100220222211200112
420133103100003
5242430014133
622044341535
73346401350
oct1037232003
9326884615
10142423043
11734375a4
123b8448ab
13236781b9
1414cb5627
15c784648
hex87d3403

142423043 has 8 divisors (see below), whose sum is σ = 163769088. Its totient is φ = 121326984.

The previous prime is 142423033. The next prime is 142423081. The reversal of 142423043 is 340324241.

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

It is a cyclic number.

It is not a de Polignac number, because 142423043 - 26 = 142422979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142423013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61271 + ... + 63552.

It is an arithmetic number, because the mean of its divisors is an integer number (20471136).

Almost surely, 2142423043 is an apocalyptic number.

142423043 is a deficient number, since it is larger than the sum of its proper divisors (21346045).

142423043 is a wasteful number, since it uses less digits than its factorization.

142423043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124993.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 142423043 is about 11934.1125769787. The cubic root of 142423043 is about 522.2279199737.

Adding to 142423043 its reverse (340324241), we get a palindrome (482747284).

The spelling of 142423043 in words is "one hundred forty-two million, four hundred twenty-three thousand, forty-three".

Divisors: 1 7 163 1141 124823 873761 20346149 142423043