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23106290 = 256734487
BaseRepresentation
bin101100000100…
…1001011110010
31121110220212112
41120021023302
521403400130
62143125322
7400254164
oct130111362
947426775
1023106290
1112052109
1278a3842
134a3027c
1430d6934
152066495
hex16092f2

23106290 has 16 divisors (see below), whose sum is σ = 42213312. Its totient is φ = 9104304.

The previous prime is 23106277. The next prime is 23106361. The reversal of 23106290 is 9260132.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16574 + ... + 17913.

It is an arithmetic number, because the mean of its divisors is an integer number (2638332).

Almost surely, 223106290 is an apocalyptic number.

23106290 is a deficient number, since it is larger than the sum of its proper divisors (19107022).

23106290 is a wasteful number, since it uses less digits than its factorization.

23106290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34561.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 23106290 is about 4806.9002486010. The cubic root of 23106290 is about 284.8241040413.

The spelling of 23106290 in words is "twenty-three million, one hundred six thousand, two hundred ninety".

Divisors: 1 2 5 10 67 134 335 670 34487 68974 172435 344870 2310629 4621258 11553145 23106290