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1006561230 = 23573461997
BaseRepresentation
bin111011111111101…
…110011111001110
32121011000121102120
4323333232133032
54030134424410
6243514033410
733641425563
oct7377563716
92534017376
101006561230
114771a5394
12241118866
131306c677c
149797886a
155d57a570
hex3bfee7ce

1006561230 has 64 divisors (see below), whose sum is σ = 2456612928. Its totient is φ = 263900160.

The previous prime is 1006561223. The next prime is 1006561267. The reversal of 1006561230 is 321656001.

It is a super-2 number, since 2×10065612302 = 2026331019478225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1006561230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1009092 + ... + 1010088.

It is an arithmetic number, because the mean of its divisors is an integer number (38384577).

Almost surely, 21006561230 is an apocalyptic number.

1006561230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1006561230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228306464).

1006561230 is an abundant number, since it is smaller than the sum of its proper divisors (1450051698).

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

1006561230 is a wasteful number, since it uses less digits than its factorization.

1006561230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1006561230 is about 31726.3491438898. The cubic root of 1006561230 is about 1002.1823107222.

The spelling of 1006561230 in words is "one billion, six million, five hundred sixty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 73 146 219 365 438 461 730 922 997 1095 1383 1994 2190 2305 2766 2991 4610 4985 5982 6915 9970 13830 14955 29910 33653 67306 72781 100959 145562 168265 201918 218343 336530 363905 436686 459617 504795 727810 919234 1009590 1091715 1378851 2183430 2298085 2757702 4596170 6894255 13788510 33552041 67104082 100656123 167760205 201312246 335520410 503280615 1006561230