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195053916880 = 2453271745391
BaseRepresentation
bin1011010110101000011…
…1101001001011010000
3200122110122100121222201
42311222013221023100
511143432300320010
6225335002212544
720043421636414
oct2655207511320
9618418317881
10195053916880
11757a393a7a9
12319771b4154
13155166ba784
149625256d44
15511911d23a
hex2d6a1e92d0

195053916880 has 40 divisors (see below), whose sum is σ = 453639608064. Its totient is φ = 77997609600.

The previous prime is 195053916877. The next prime is 195053916881. The reversal of 195053916880 is 88619350591.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195053916881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111016 + ... + 634375.

Almost surely, 2195053916880 is an apocalyptic number.

195053916880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195053916880 is an abundant number, since it is smaller than the sum of its proper divisors (258585691184).

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

195053916880 is a wasteful number, since it uses less digits than its factorization.

195053916880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748675 (or 748669 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 195053916880 in words is "one hundred ninety-five billion, fifty-three million, nine hundred sixteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3271 6542 13084 16355 26168 32710 52336 65420 130840 261680 745391 1490782 2981564 3726955 5963128 7453910 11926256 14907820 29815640 59631280 2438173961 4876347922 9752695844 12190869805 19505391688 24381739610 39010783376 48763479220 97526958440 195053916880