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84972084747 = 31137233298679
BaseRepresentation
bin100111100100010111…
…0110001111000001011
322010022211222011000220
41033020232301320023
52343010323202442
6103011410401123
76065454542334
oct1171056617013
9263284864026
1084972084747
1133044587a30
1214574b901a3
13802226b5b4
14418125128b
152324c5deec
hex13c8bb1e0b

84972084747 has 32 divisors (see below), whose sum is σ = 127481402880. Its totient is φ = 49891173120.

The previous prime is 84972084739. The next prime is 84972084767. The reversal of 84972084747 is 74748027948.

It is not a de Polignac number, because 84972084747 - 23 = 84972084739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84972084737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135154 + ... + 433832.

It is an arithmetic number, because the mean of its divisors is an integer number (3983793840).

Almost surely, 284972084747 is an apocalyptic number.

84972084747 is a deficient number, since it is larger than the sum of its proper divisors (42509318133).

84972084747 is a wasteful number, since it uses less digits than its factorization.

84972084747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298963.

The product of its (nonzero) digits is 25288704, while the sum is 60.

The spelling of 84972084747 in words is "eighty-four billion, nine hundred seventy-two million, eighty-four thousand, seven hundred forty-seven".

Divisors: 1 3 11 33 37 111 233 407 699 1221 2563 7689 8621 25863 94831 284493 298679 896037 3285469 9856407 11051123 33153369 69592207 121562353 208776621 364687059 765514277 2296542831 2574911659 7724734977 28324028249 84972084747