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1689380230 = 25168938023
BaseRepresentation
bin110010010110001…
…1110010110000110
311100201212102000011
41210230132112012
511424440131410
6435345140434
756602331536
oct14454362606
94321772004
101689380230
1179767a40a
123b192a71a
1320bccb895
1412051d4c6
159d4a718a
hex64b1e586

1689380230 has 8 divisors (see below), whose sum is σ = 3040884432. Its totient is φ = 675752088.

The previous prime is 1689380213. The next prime is 1689380261. The reversal of 1689380230 is 320839861.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 84469002 + ... + 84469021.

It is an arithmetic number, because the mean of its divisors is an integer number (380110554).

Almost surely, 21689380230 is an apocalyptic number.

1689380230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1689380230 is a deficient number, since it is larger than the sum of its proper divisors (1351504202).

1689380230 is a wasteful number, since it uses less digits than its factorization.

1689380230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168938030.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1689380230 is about 41102.0708724025. The cubic root of 1689380230 is about 1190.9927995310.

The spelling of 1689380230 in words is "one billion, six hundred eighty-nine million, three hundred eighty thousand, two hundred thirty".

Divisors: 1 2 5 10 168938023 337876046 844690115 1689380230