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1688286048008 = 237415367207073
BaseRepresentation
bin11000100100010101101…
…100001010111100001000
312222101202120001101222012
4120210111230022330020
5210130102212014013
63331330553115052
7232655205426020
oct30442554127410
95871676041865
101688286048008
115a0aa850802a
1223324b6b8a88
13c3287925431
145b9dbb10a80
152ddb22531a8
hex18915b0af08

1688286048008 has 128 divisors (see below), whose sum is σ = 3832293669120. Its totient is φ = 682244259840.

The previous prime is 1688286047993. The next prime is 1688286048041. The reversal of 1688286048008 is 8008406828861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8049560 + ... + 8256632.

It is an arithmetic number, because the mean of its divisors is an integer number (29939794290).

Almost surely, 21688286048008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1688286048008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916146834560).

1688286048008 is an abundant number, since it is smaller than the sum of its proper divisors (2144007621112).

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

1688286048008 is a wasteful number, since it uses less digits than its factorization.

1688286048008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207247 (or 207243 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 59.

The spelling of 1688286048008 in words is "one trillion, six hundred eighty-eight billion, two hundred eighty-six million, forty-eight thousand, eight".

Divisors: 1 2 4 7 8 14 28 41 53 56 67 82 106 134 164 212 268 287 328 371 424 469 536 574 742 938 1148 1484 1876 2173 2296 2747 2968 3551 3752 4346 5494 7102 8692 10988 14204 15211 17384 19229 21976 24857 28408 30422 38458 49714 60844 76916 99428 121688 145591 153832 198856 207073 291182 414146 582364 828292 1019137 1164728 1449511 1656584 2038274 2899022 4076548 5798044 8153096 8489993 10974869 11596088 13873891 16979986 21949738 27747782 33959972 43899476 55495564 59429951 67919944 76824083 87798952 97117237 110991128 118859902 153648166 194234474 237719804 307296332 388468948 449969629 475439608 568829531 614592664 735316223 776937896 899939258 1137659062 1470632446 1799878516 2275318124 2941264892 3149787403 3599757032 3981806717 4550636248 5147213561 5882529784 6299574806 7963613434 10294427122 12599149612 15927226868 20588854244 25198299224 30147965143 31854453736 41177708488 60295930286 120591860572 211035756001 241183721144 422071512002 844143024004 1688286048008