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128276676455 = 5311987416503
BaseRepresentation
bin111011101110111100…
…0101011111101100111
3110021002211012100010212
41313131320223331213
54100202312121310
6134532434210035
712160546521314
oct1673570537547
9407084170125
10128276676455
114a4469266a4
1220a3b72391b
13c133b50165
1462cc671d0b
15350b904205
hex1ddde2bf67

128276676455 has 16 divisors (see below), whose sum is σ = 158977910784. Its totient is φ = 99260756640.

The previous prime is 128276676427. The next prime is 128276676461. The reversal of 128276676455 is 554676672821.

It is not a de Polignac number, because 128276676455 - 218 = 128276414311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128276676394 and 128276676403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99734 + ... + 516236.

It is an arithmetic number, because the mean of its divisors is an integer number (9936119424).

Almost surely, 2128276676455 is an apocalyptic number.

128276676455 is a deficient number, since it is larger than the sum of its proper divisors (30701234329).

128276676455 is a wasteful number, since it uses less digits than its factorization.

128276676455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418526.

The product of its digits is 33868800, while the sum is 59.

The spelling of 128276676455 in words is "one hundred twenty-eight billion, two hundred seventy-six million, six hundred seventy-six thousand, four hundred fifty-five".

Divisors: 1 5 31 155 1987 9935 61597 307985 416503 2082515 12911593 64557965 827591461 4137957305 25655335291 128276676455