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4212154133780 = 2251830111507989
BaseRepresentation
bin111101010010110111111…
…100110110110100010100
3112220200022021010100120112
4331102313330312310110
51023002442424240110
612543011545222152
7613214051251355
oct75226774666424
915820267110515
104212154133780
11138440121a42a
12580415a91958
13247287197a38
14107c256c1d2c
157487b499405
hex3d4b7f36d14

4212154133780 has 24 divisors (see below), whose sum is σ = 8846007785160. Its totient is φ = 1684769443200.

The previous prime is 4212154133777. The next prime is 4212154133791. The reversal of 4212154133780 is 873314512124.

It can be written as a sum of positive squares in 4 ways, for example, as 400959969796 + 3811194163984 = 633214^2 + 1952228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5387975 + ... + 6120014.

It is an arithmetic number, because the mean of its divisors is an integer number (368583657715).

Almost surely, 24212154133780 is an apocalyptic number.

It is an amenable number.

4212154133780 is an abundant number, since it is smaller than the sum of its proper divisors (4633853651380).

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

4212154133780 is a wasteful number, since it uses less digits than its factorization.

4212154133780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11526299 (or 11526297 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 4212154133780 in words is "four trillion, two hundred twelve billion, one hundred fifty-four million, one hundred thirty-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 18301 36602 73204 91505 183010 366020 11507989 23015978 46031956 57539945 115079890 230159780 210607706689 421215413378 842430826756 1053038533445 2106077066890 4212154133780