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1968961013552 = 241387973107603
BaseRepresentation
bin11100101001101111001…
…110001100011100110000
320222020020021111222010102
4130221233032030130300
5224224413004413202
64104310031451532
7262152455321141
oct34515716143460
96866207458112
101968961013552
1169a039185975
12279721086ba8
13113897b619c0
146b426469ac8
153633d070d02
hex1ca6f38c730

1968961013552 has 40 divisors (see below), whose sum is σ = 4108397764464. Its totient is φ = 908732461824.

The previous prime is 1968961013483. The next prime is 1968961013587. The reversal of 1968961013552 is 2553101698691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18244583 + ... + 18352185.

Almost surely, 21968961013552 is an apocalyptic number.

It is an amenable number.

1968961013552 is an abundant number, since it is smaller than the sum of its proper divisors (2139436750912).

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

1968961013552 is a wasteful number, since it uses less digits than its factorization.

1968961013552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195597 (or 195591 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 1968961013552 in words is "one trillion, nine hundred sixty-eight billion, nine hundred sixty-one million, thirteen thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 87973 107603 175946 215206 351892 430412 703784 860824 1143649 1398839 1407568 1721648 2287298 2797678 4574596 5595356 9149192 11190712 18298384 22381424 9466158719 18932317438 37864634876 75729269752 123060063347 151458539504 246120126694 492240253388 984480506776 1968961013552