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1990000704 = 26310364587
BaseRepresentation
bin111011010011101…
…0000000001000000
312010200112111202210
41312213100001000
513033420010304
6525244342120
7100212504216
oct16647200100
95120474683
101990000704
11931337a8a
12476544940
13259385c13
1414c414cb6
15b9a89c89
hex769d0040

1990000704 has 28 divisors (see below), whose sum is σ = 5265210704. Its totient is φ = 663333504.

The previous prime is 1990000703. The next prime is 1990000717. The reversal of 1990000704 is 4070000991.

It is not an unprimeable number, because it can be changed into a prime (1990000703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5182102 + ... + 5182485.

Almost surely, 21990000704 is an apocalyptic number.

It is an amenable number.

1990000704 is an abundant number, since it is smaller than the sum of its proper divisors (3275210000).

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

1990000704 is a wasteful number, since it uses less digits than its factorization.

1990000704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10364602 (or 10364592 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1990000704 is about 44609.4239371010. The cubic root of 1990000704 is about 1257.8178202691.

The spelling of 1990000704 in words is "one billion, nine hundred ninety million, seven hundred four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 10364587 20729174 31093761 41458348 62187522 82916696 124375044 165833392 248750088 331666784 497500176 663333568 995000352 1990000704