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142248212 = 221931173349
BaseRepresentation
bin10000111101010…
…00100100010100
3100220122221212022
420132220210110
5242403420322
622040512312
73345042551
oct1036504424
9326587768
10142248212
1173328207
123b77b698
1323616752
1414c6ba28
15c74c942
hex87a8914

142248212 has 48 divisors (see below), whose sum is σ = 272832000. Its totient is φ = 64644480.

The previous prime is 142248209. The next prime is 142248217. The reversal of 142248212 is 212842241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142248217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407414 + ... + 407762.

It is an arithmetic number, because the mean of its divisors is an integer number (5684000).

Almost surely, 2142248212 is an apocalyptic number.

It is an amenable number.

142248212 is a deficient number, since it is larger than the sum of its proper divisors (130583788).

142248212 is a wasteful number, since it uses less digits than its factorization.

142248212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 574 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 142248212 is about 11926.7854847817. The cubic root of 142248212 is about 522.0141460130.

The spelling of 142248212 in words is "one hundred forty-two million, two hundred forty-eight thousand, two hundred twelve".

Divisors: 1 2 4 19 31 38 62 76 124 173 346 349 589 692 698 1178 1396 2356 3287 5363 6574 6631 10726 10819 13148 13262 21452 21638 26524 43276 60377 101897 120754 203794 205561 241508 407588 411122 822244 1147163 1871687 2294326 3743374 4588652 7486748 35562053 71124106 142248212