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290231637696 = 263271121367683
BaseRepresentation
bin1000011100100110010…
…01110101011011000000
31000202010202000210210200
410032103021311123000
514223343244401241
6341155223125200
726653132134060
oct4162311653300
91022122023720
10290231637696
111020a5214100
12482b9ba3800
13214a4124c80
1410093a793a0
157839d094b6
hex43932756c0

290231637696 has 1008 divisors, whose sum is σ = 1143883383552. Its totient is φ = 68447047680.

The previous prime is 290231637679. The next prime is 290231637701. The reversal of 290231637696 is 696736132092.

290231637696 is a `hidden beast` number, since 290 + 2 + 316 + 37 + 6 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 424936171 + ... + 424936853.

It is an arithmetic number, because the mean of its divisors is an integer number (1134804944).

Almost surely, 2290231637696 is an apocalyptic number.

290231637696 is a gapful number since it is divisible by the number (26) 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 290231637696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571941691776).

290231637696 is an abundant number, since it is smaller than the sum of its proper divisors (853651745856).

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

290231637696 is a wasteful number, since it uses less digits than its factorization.

290231637696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 290231637696 in words is "two hundred ninety billion, two hundred thirty-one million, six hundred thirty-seven thousand, six hundred ninety-six".