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68190955003460 = 2253409547750173
BaseRepresentation
bin11111000000100111100011…
…01001100101111001000100
322221102222202220022011200002
433200103301221211321010
532414220033440102320
6401010254154540432
720235430301622452
oct1740236151457104
9287388686264602
1068190955003460
111a800692401793
127793a44a37718
132c084c18b8653
1412ba661acb9d2
157d3c0ad73675
hex3e04f1a65e44

68190955003460 has 12 divisors (see below), whose sum is σ = 143201005507308. Its totient is φ = 27276382001376.

The previous prime is 68190955003351. The next prime is 68190955003477. The reversal of 68190955003460 is 6430055909186.

It can be written as a sum of positive squares in 2 ways, for example, as 42364373299264 + 25826581704196 = 6508792^2 + 5081986^2 .

It is a super-2 number, since 2×681909550034602 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68190955003396 and 68190955003405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704773875067 + ... + 1704773875106.

It is an arithmetic number, because the mean of its divisors is an integer number (11933417125609).

Almost surely, 268190955003460 is an apocalyptic number.

It is an amenable number.

68190955003460 is an abundant number, since it is smaller than the sum of its proper divisors (75010050503848).

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

68190955003460 is a wasteful number, since it uses less digits than its factorization.

68190955003460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409547750182 (or 3409547750180 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 68190955003460 in words is "sixty-eight trillion, one hundred ninety billion, nine hundred fifty-five million, three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 3409547750173 6819095500346 13638191000692 17047738750865 34095477501730 68190955003460