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143105668140 = 223516971405477
BaseRepresentation
bin1000010101000111000…
…0110011010000101100
3111200101021120011112010
42011101300303100230
54321040022340030
6145424123041220
713224202052241
oct2052160632054
9450337504463
10143105668140
1155766467626
1223899970210
1310658122c56
146cd7c9d5c8
153ac86d96b0
hex2151c3342c

143105668140 has 48 divisors (see below), whose sum is σ = 400932276192. Its totient is φ = 38138996736.

The previous prime is 143105668093. The next prime is 143105668217. The reversal of 143105668140 is 41866501341.

It is a super-2 number, since 2×1431056681402 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600919 + ... + 804558.

It is an arithmetic number, because the mean of its divisors is an integer number (8352755754).

Almost surely, 2143105668140 is an apocalyptic number.

143105668140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143105668140 is an abundant number, since it is smaller than the sum of its proper divisors (257826608052).

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

143105668140 is a wasteful number, since it uses less digits than its factorization.

143105668140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407186 (or 1407184 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 143105668140 in words is "one hundred forty-three billion, one hundred five million, six hundred sixty-eight thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1697 3394 5091 6788 8485 10182 16970 20364 25455 33940 50910 101820 1405477 2810954 4216431 5621908 7027385 8432862 14054770 16865724 21082155 28109540 42164310 84328620 2385094469 4770188938 7155283407 9540377876 11925472345 14310566814 23850944690 28621133628 35776417035 47701889380 71552834070 143105668140