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23108986 = 211554493
BaseRepresentation
bin101100000100…
…1110101111010
31121111001120101
41120021311322
521403441421
62143150014
7400265065
oct130116572
947431511
1023108986
111205413a
1278a530a
134a31574
1430d78dc
152067191
hex1609d7a

23108986 has 4 divisors (see below), whose sum is σ = 34663482. Its totient is φ = 11554492.

The previous prime is 23108971. The next prime is 23109019. The reversal of 23108986 is 68980132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 10725625 = 3519^2 + 3275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777245 + ... + 5777248.

Almost surely, 223108986 is an apocalyptic number.

23108986 is a deficient number, since it is larger than the sum of its proper divisors (11554496).

23108986 is a wasteful number, since it uses less digits than its factorization.

23108986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11554495.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 23108986 is about 4807.1806706218. The cubic root of 23108986 is about 284.8351811971.

The spelling of 23108986 in words is "twenty-three million, one hundred eight thousand, nine hundred eighty-six".

Divisors: 1 2 11554493 23108986