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142555212 = 22327575231
BaseRepresentation
bin10000111111100…
…11100001001100
3100221020112222200
420133303201030
5242443231322
622051241500
73350461602
oct1037634114
9327215880
10142555212
1173517928
123b8a9290
13236c33c7
1414d0b872
15c7ad8ac
hex87f384c

142555212 has 36 divisors (see below), whose sum is σ = 360892896. Its totient is φ = 47446560.

The previous prime is 142555211. The next prime is 142555229. The reversal of 142555212 is 212555241.

142555212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (142555211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24637 + ... + 29867.

Almost surely, 2142555212 is an apocalyptic number.

142555212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142555212 is an abundant number, since it is smaller than the sum of its proper divisors (218337684).

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

142555212 is a wasteful number, since it uses less digits than its factorization.

142555212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998 (or 5993 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 142555212 is about 11939.6487385517. The cubic root of 142555212 is about 522.3894130405.

The spelling of 142555212 in words is "one hundred forty-two million, five hundred fifty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 757 1514 2271 3028 4542 5231 6813 9084 10462 13626 15693 20924 27252 31386 47079 62772 94158 188316 3959867 7919734 11879601 15839468 23759202 35638803 47518404 71277606 142555212