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23121148 = 225780287
BaseRepresentation
bin101100000110…
…0110011111100
31121111200020211
41120030303330
521404334043
62143322204
7400345411
oct130146374
947450224
1023121148
1112062296
1278b0364
134a36c6b
1430dc108
15206aa9d
hex160ccfc

23121148 has 6 divisors (see below), whose sum is σ = 40462016. Its totient is φ = 11560572.

The previous prime is 23121127. The next prime is 23121181. The reversal of 23121148 is 84112132.

It is a happy number.

It is a congruent number.

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, 2890140 + ... + 2890147.

Almost surely, 223121148 is an apocalyptic number.

It is an amenable number.

23121148 is a deficient number, since it is larger than the sum of its proper divisors (17340868).

23121148 is a wasteful number, since it uses less digits than its factorization.

23121148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780291 (or 5780289 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 23121148 is about 4808.4454868492. The cubic root of 23121148 is about 284.8851409535.

The spelling of 23121148 in words is "twenty-three million, one hundred twenty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 5780287 11560574 23121148