Search a number
-
+
142442014 = 211131729297
BaseRepresentation
bin10000111110101…
…11111000011110
3100221000210201011
420133113320132
5242431121024
622045005434
73346510561
oct1037277036
9327023634
10142442014
117344a880
123b85387a
1323683a20
1414cbc4d8
15c78a094
hex87d7e1e

142442014 has 32 divisors (see below), whose sum is σ = 265791456. Its totient is φ = 56248320.

The previous prime is 142441973. The next prime is 142442023. The reversal of 142442014 is 410244241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9787 + ... + 19510.

It is an arithmetic number, because the mean of its divisors is an integer number (8305983).

Almost surely, 2142442014 is an apocalyptic number.

142442014 is a deficient number, since it is larger than the sum of its proper divisors (123349442).

142442014 is a wasteful number, since it uses less digits than its factorization.

142442014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29340.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 142442014 is about 11934.9073729125. The cubic root of 142442014 is about 522.2511061703.

Adding to 142442014 its reverse (410244241), we get a palindrome (552686255).

The spelling of 142442014 in words is "one hundred forty-two million, four hundred forty-two thousand, fourteen".

Divisors: 1 2 11 13 17 22 26 34 143 187 221 286 374 442 2431 4862 29297 58594 322267 380861 498049 644534 761722 996098 4189471 5478539 6474637 8378942 10957078 12949274 71221007 142442014