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142330044 = 22311860837
BaseRepresentation
bin10000111101111…
…00100010111100
3100220211010010010
420132330202330
5242414030134
622042343220
73345533253
oct1036744274
9326733103
10142330044
117338373a
123b7bab10
1323644a7c
1414c8d79a
15c766ce9
hex87bc8bc

142330044 has 12 divisors (see below), whose sum is σ = 332103464. Its totient is φ = 47443344.

The previous prime is 142329989. The next prime is 142330061. The reversal of 142330044 is 440033241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 142330044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5930407 + ... + 5930430.

Almost surely, 2142330044 is an apocalyptic number.

It is an amenable number.

142330044 is an abundant number, since it is smaller than the sum of its proper divisors (189773420).

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

142330044 is a wasteful number, since it uses less digits than its factorization.

142330044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860844 (or 11860842 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142330044 is about 11930.2155889992. The cubic root of 142330044 is about 522.1142275821.

Adding to 142330044 its reverse (440033241), we get a palindrome (582363285).

The spelling of 142330044 in words is "one hundred forty-two million, three hundred thirty thousand, forty-four".

Divisors: 1 2 3 4 6 12 11860837 23721674 35582511 47443348 71165022 142330044