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17320679380 = 225866033969
BaseRepresentation
bin10000001000011001…
…001001011111010100
31122201002220200022201
4100020121021133110
5240433043220010
611542414134244
71152136226344
oct201031113724
948632820281
1017320679380
117389087864
1234347b1384
131830581914
14ba4516d24
156b591d23a
hex4086497d4

17320679380 has 12 divisors (see below), whose sum is σ = 36373426740. Its totient is φ = 6928271744.

The previous prime is 17320679329. The next prime is 17320679393. The reversal of 17320679380 is 8397602371.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8267537476 + 9053141904 = 90926^2 + 95148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 17320679380.

It is a congruent number.

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, 433016965 + ... + 433017004.

It is an arithmetic number, because the mean of its divisors is an integer number (3031118895).

Almost surely, 217320679380 is an apocalyptic number.

17320679380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17320679380 is an abundant number, since it is smaller than the sum of its proper divisors (19052747360).

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

17320679380 is a wasteful number, since it uses less digits than its factorization.

17320679380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866033978 (or 866033976 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 17320679380 in words is "seventeen billion, three hundred twenty million, six hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 866033969 1732067938 3464135876 4330169845 8660339690 17320679380