Search a number
-
+
142800938 = 2710200067
BaseRepresentation
bin10001000001011…
…11100000101010
3100221201001001122
420200233200222
5243024112223
622100415242
73352534160
oct1040574052
9327631048
10142800938
1173675505
123b9a7522
132377b1c7
1414d73230
15c80b5c8
hex882f82a

142800938 has 8 divisors (see below), whose sum is σ = 244801632. Its totient is φ = 61200396.

The previous prime is 142800913. The next prime is 142800943. The reversal of 142800938 is 839008241.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 142800898 and 142800907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100020 + ... + 5100047.

It is an arithmetic number, because the mean of its divisors is an integer number (30600204).

Almost surely, 2142800938 is an apocalyptic number.

142800938 is a deficient number, since it is larger than the sum of its proper divisors (102000694).

142800938 is a wasteful number, since it uses less digits than its factorization.

142800938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200076.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 142800938 is about 11949.9346441727. The cubic root of 142800938 is about 522.6893926636.

The spelling of 142800938 in words is "one hundred forty-two million, eight hundred thousand, nine hundred thirty-eight".

Divisors: 1 2 7 14 10200067 20400134 71400469 142800938