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23066810 = 2513213649
BaseRepresentation
bin101011111111…
…1100010111010
31121101220201022
41113333202322
521401114220
62142222442
7400031114
oct127774272
947356638
1023066810
1112025488
127884a22
134a18300
1430c63b4
152059925
hex15ff8ba

23066810 has 24 divisors (see below), whose sum is σ = 44963100. Its totient is φ = 8516352.

The previous prime is 23066809. The next prime is 23066831. The reversal of 23066810 is 1866032.

It can be written as a sum of positive squares in 6 ways, for example, as 208849 + 22857961 = 457^2 + 4781^2 .

It is a super-2 number, since 2×230668102 = 1064155447152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 23066810.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5135 + ... + 8514.

Almost surely, 223066810 is an apocalyptic number.

23066810 is a deficient number, since it is larger than the sum of its proper divisors (21896290).

23066810 is a wasteful number, since it uses less digits than its factorization.

23066810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13682 (or 13669 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 23066810 is about 4802.7918963869. The cubic root of 23066810 is about 284.6617923053.

The spelling of 23066810 in words is "twenty-three million, sixty-six thousand, eight hundred ten".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 13649 27298 68245 136490 177437 354874 887185 1774370 2306681 4613362 11533405 23066810