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1968652381696 = 297111310393697
BaseRepresentation
bin11100101001011100110…
…100110110111000000000
320222012102202202211210221
4130221130310312320000
5224223300002203241
64104215244432424
7262142020100620
oct34513464667000
96865382684727
101968652381696
1169999aa46220
12279655848714
13113848c30cc0
146b3d748a880
1536320e095d1
hex1ca5cd36e00

1968652381696 has 320 divisors, whose sum is σ = 5287801559040. Its totient is φ = 707134095360.

The previous prime is 1968652381667. The next prime is 1968652381727. The reversal of 1968652381696 is 6961832568691.

It is a super-3 number, since 3×19686523816963 (a number of 38 digits) contains 333 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 532498120 + ... + 532501816.

It is an arithmetic number, because the mean of its divisors is an integer number (16524379872).

Almost surely, 21968652381696 is an apocalyptic number.

1968652381696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1968652381696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643900779520).

1968652381696 is an abundant number, since it is smaller than the sum of its proper divisors (3319149177344).

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

1968652381696 is a wasteful number, since it uses less digits than its factorization.

1968652381696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785 (or 4769 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 70.

The spelling of 1968652381696 in words is "one trillion, nine hundred sixty-eight billion, six hundred fifty-two million, three hundred eighty-one thousand, six hundred ninety-six".