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142211148 = 223431971399
BaseRepresentation
bin10000111100111…
…11100001001100
3100220121002000120
420132133201030
5242401224043
622040024540
73344526522
oct1036374114
9326532016
10142211148
1173302382
123b762150
1323602911
1414c5c312
15c741983
hex879f84c

142211148 has 48 divisors (see below), whose sum is σ = 341510400. Its totient is φ = 46033344.

The previous prime is 142211141. The next prime is 142211149. The reversal of 142211148 is 841112241.

142211148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142211141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100953 + ... + 102351.

It is an arithmetic number, because the mean of its divisors is an integer number (7114800).

Almost surely, 2142211148 is an apocalyptic number.

It is an amenable number.

142211148 is an abundant number, since it is smaller than the sum of its proper divisors (199299252).

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

142211148 is a wasteful number, since it uses less digits than its factorization.

142211148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1644 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

The square root of 142211148 is about 11925.2315700786. The cubic root of 142211148 is about 521.9688036435.

Adding to 142211148 its reverse (841112241), we get a palindrome (983323389).

The spelling of 142211148 in words is "one hundred forty-two million, two hundred eleven thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 197 258 394 516 591 788 1182 1399 2364 2798 4197 5596 8394 8471 16788 16942 25413 33884 50826 60157 101652 120314 180471 240628 275603 360942 551206 721884 826809 1102412 1653618 3307236 11850929 23701858 35552787 47403716 71105574 142211148