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142860237 = 3133663083
BaseRepresentation
bin10001000001111…
…01111111001101
3100221211001101220
420200331333031
5243033011422
622101553553
73353202102
oct1040757715
9327731356
10142860237
1173706013
123ba158b9
132379c1b0
1414d8aaa9
15c81de5c
hex883dfcd

142860237 has 8 divisors (see below), whose sum is σ = 205132704. Its totient is φ = 87913968.

The previous prime is 142860229. The next prime is 142860239. The reversal of 142860237 is 732068241.

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

It is not a de Polignac number, because 142860237 - 23 = 142860229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142860198 and 142860207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142860239) 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, 1831503 + ... + 1831580.

It is an arithmetic number, because the mean of its divisors is an integer number (25641588).

Almost surely, 2142860237 is an apocalyptic number.

It is an amenable number.

142860237 is a deficient number, since it is larger than the sum of its proper divisors (62272467).

142860237 is a wasteful number, since it uses less digits than its factorization.

142860237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663099.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 142860237 is about 11952.4155299253. The cubic root of 142860237 is about 522.7617326857.

The spelling of 142860237 in words is "one hundred forty-two million, eight hundred sixty thousand, two hundred thirty-seven".

Divisors: 1 3 13 39 3663083 10989249 47620079 142860237