Search a number
-
+
142214142 = 2374797069
BaseRepresentation
bin10000111101000…
…00001111111110
3100220121020010110
420132200033332
5242401323032
622040050450
73344541330
oct1036401776
9326536113
10142214142
1173304654
123b763a26
13236040a5
1414c5d450
15c7427cc
hex87a03fe

142214142 has 32 divisors (see below), whose sum is σ = 325785600. Its totient is φ = 40542048.

The previous prime is 142214101. The next prime is 142214167. The reversal of 142214142 is 241412241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16584 + ... + 23652.

It is an arithmetic number, because the mean of its divisors is an integer number (10180800).

Almost surely, 2142214142 is an apocalyptic number.

142214142 is an abundant number, since it is smaller than the sum of its proper divisors (183571458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142214142 is a wasteful number, since it uses less digits than its factorization.

142214142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560.

The product of its digits is 512, while the sum is 21.

The square root of 142214142 is about 11925.3571015714. The cubic root of 142214142 is about 521.9724666560.

Adding to 142214142 its reverse (241412241), we get a palindrome (383626383).

The spelling of 142214142 in words is "one hundred forty-two million, two hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 479 958 1437 2874 3353 6706 7069 10059 14138 20118 21207 42414 49483 98966 148449 296898 3386051 6772102 10158153 20316306 23702357 47404714 71107071 142214142