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648768120006 = 231071010542243
BaseRepresentation
bin10010111000011011001…
…01111110010011000110
32022000120202200020110010
421130031211332103012
541112134114320011
61214012344211050
764605036013626
oct11341545762306
92260522606403
10648768120006
11230160765a06
12a589b169a86
1349242423156
1423587146886
1511d214cb1a6
hex970d97e4c6

648768120006 has 16 divisors (see below), whose sum is σ = 1309662748224. Its totient is φ = 214234955304.

The previous prime is 648768119977. The next prime is 648768120017. The reversal of 648768120006 is 600021867846.

It is a super-2 number, since 2×6487681200062 (a number of 24 digits) contains 22 as substring.

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, 505270480 + ... + 505271763.

It is an arithmetic number, because the mean of its divisors is an integer number (81853921764).

Almost surely, 2648768120006 is an apocalyptic number.

648768120006 is an abundant number, since it is smaller than the sum of its proper divisors (660894628218).

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

648768120006 is a wasteful number, since it uses less digits than its factorization.

648768120006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010542355.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 648768120006 in words is "six hundred forty-eight billion, seven hundred sixty-eight million, one hundred twenty thousand, six".

Divisors: 1 2 3 6 107 214 321 642 1010542243 2021084486 3031626729 6063253458 108128020001 216256040002 324384060003 648768120006