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212787641482 = 2138184140057
BaseRepresentation
bin1100011000101100100…
…0011011110010001010
3202100020112111011211121
43012023020123302022
511441242114011412
6241430413345454
721242035052413
oct3061310336212
9670215434747
10212787641482
1182274092549
12352a619828a
13170b16ca640
14a42856c80a
155805e2a107
hex318b21bc8a

212787641482 has 8 divisors (see below), whose sum is σ = 343733882436. Its totient is φ = 98209680672.

The previous prime is 212787641401. The next prime is 212787641489. The reversal of 212787641482 is 284146787212.

It can be written as a sum of positive squares in 2 ways, for example, as 210296533561 + 2491107921 = 458581^2 + 49911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212787641489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4092070003 + ... + 4092070054.

Almost surely, 2212787641482 is an apocalyptic number.

212787641482 is a deficient number, since it is larger than the sum of its proper divisors (130946240954).

212787641482 is a wasteful number, since it uses less digits than its factorization.

212787641482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184140072.

The product of its digits is 2408448, while the sum is 52.

The spelling of 212787641482 in words is "two hundred twelve billion, seven hundred eighty-seven million, six hundred forty-one thousand, four hundred eighty-two".

Divisors: 1 2 13 26 8184140057 16368280114 106393820741 212787641482