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128706115468546 = 271117267405710639
BaseRepresentation
bin11101010000111010111010…
…010010101111110100000010
3121212201011222110222211021201
4131100322322102233310002
5113332210111024443141
61133422435002011414
736052465344514330
oct3520727222576402
9555634873884251
10128706115468546
1138011a58903080
12125281357a6b6a
1356a7c1c454cb5
1423ad5a2cbcb50
15ed2e1c4b9031
hex750eba4afd02

128706115468546 has 192 divisors, whose sum is σ = 259593280450560. Its totient is φ = 46475280783360.

The previous prime is 128706115468537. The next prime is 128706115468547. The reversal of 128706115468546 is 645864511607821.

It is not an unprimeable number, because it can be changed into a prime (128706115468547) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12097571095 + ... + 12097581733.

It is an arithmetic number, because the mean of its divisors is an integer number (1352048335680).

Almost surely, 2128706115468546 is an apocalyptic number.

128706115468546 is an abundant number, since it is smaller than the sum of its proper divisors (130887164982014).

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

128706115468546 is a wasteful number, since it uses less digits than its factorization.

128706115468546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817 (or 14800 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 128706115468546 in words is "one hundred twenty-eight trillion, seven hundred six billion, one hundred fifteen million, four hundred sixty-eight thousand, five hundred forty-six".