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1669552430 = 257133159183
BaseRepresentation
bin110001110000011…
…0101100100101110
311022100120001101012
41203200311210232
511404401134210
6433400145222
756241650540
oct14340654456
94270501335
101669552430
117874674a7
123a7168212
13207b78960
1411ba3b690
159b88c305
hex6383592e

1669552430 has 64 divisors (see below), whose sum is σ = 3818078208. Its totient is φ = 511332480.

The previous prime is 1669552429. The next prime is 1669552447. The reversal of 1669552430 is 342559661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1382 + ... + 57801.

It is an arithmetic number, because the mean of its divisors is an integer number (59657472).

Almost surely, 21669552430 is an apocalyptic number.

1669552430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1669552430 is an abundant number, since it is smaller than the sum of its proper divisors (2148525778).

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

1669552430 is a wasteful number, since it uses less digits than its factorization.

1669552430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59241.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 1669552430 is about 40860.1569992089. The cubic root of 1669552430 is about 1186.3149970882.

The spelling of 1669552430 in words is "one billion, six hundred sixty-nine million, five hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 31 35 62 65 70 91 130 155 182 217 310 403 434 455 806 910 1085 2015 2170 2821 4030 5642 14105 28210 59183 118366 295915 414281 591830 769379 828562 1538758 1834673 2071405 3669346 3846895 4142810 5385653 7693790 9173365 10771306 12842711 18346730 23850749 25685422 26928265 47701498 53856530 64213555 119253745 128427110 166955243 238507490 333910486 834776215 1669552430