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85723008008 = 2311974125091
BaseRepresentation
bin100111111010101111…
…1010100110000001000
322012021011222000002112
41033311133110300020
52401030042224013
6103214113321452
76123203355101
oct1176537246010
9265234860075
1085723008008
113339a448770
1214744566288
1381119ca3a1
144212c833a8
15236ab3eba8
hex13f57d4c08

85723008008 has 16 divisors (see below), whose sum is σ = 175342516560. Its totient is φ = 38965003600.

The previous prime is 85723007987. The next prime is 85723008023. The reversal of 85723008008 is 80080032758.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 487062458 + ... + 487062633.

It is an arithmetic number, because the mean of its divisors is an integer number (10958907285).

Almost surely, 285723008008 is an apocalyptic number.

85723008008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85723008008 is an abundant number, since it is smaller than the sum of its proper divisors (89619508552).

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

85723008008 is a wasteful number, since it uses less digits than its factorization.

85723008008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974125108 (or 974125104 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 85723008008 in words is "eighty-five billion, seven hundred twenty-three million, eight thousand, eight".

Divisors: 1 2 4 8 11 22 44 88 974125091 1948250182 3896500364 7793000728 10715376001 21430752002 42861504004 85723008008