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667361317220 = 225132701195027
BaseRepresentation
bin10011011011000011101…
…01011001000101100100
32100210120120001112001222
421231201311121011210
541413223444122340
61230325341035512
766133556412653
oct11554165310544
92323516045058
10667361317220
1123803207a1a4
12a9409b55b98
134ac16509ab0
142442c66919a
151255d9ab8b5
hex9b61d59164

667361317220 has 48 divisors (see below), whose sum is σ = 1509335045568. Its totient is φ = 246398616960.

The previous prime is 667361317213. The next prime is 667361317247. The reversal of 667361317220 is 22713163766.

It is a super-2 number, since 2×6673613172202 (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 6975347 + ... + 7070373.

It is an arithmetic number, because the mean of its divisors is an integer number (31444480116).

Almost surely, 2667361317220 is an apocalyptic number.

It is an amenable number.

667361317220 is an abundant number, since it is smaller than the sum of its proper divisors (841973728348).

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

667361317220 is a wasteful number, since it uses less digits than its factorization.

667361317220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122060 (or 122058 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 667361317220 in words is "six hundred sixty-seven billion, three hundred sixty-one million, three hundred seventeen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 27011 54022 95027 108044 135055 190054 270110 351143 380108 475135 540220 702286 950270 1235351 1404572 1755715 1900540 2470702 3511430 4941404 6176755 7022860 12353510 24707020 2566774297 5133548594 10267097188 12833871485 25667742970 33368065861 51335485940 66736131722 133472263444 166840329305 333680658610 667361317220