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23038928 = 2411791657
BaseRepresentation
bin101011111100…
…0101111010000
31121100111110122
41113320233100
521344221203
62141445412
7366553613
oct127705720
947314418
1023038928
1112006540
127870868
134a08703
1430ba17a
152051538
hex15f8bd0

23038928 has 40 divisors (see below), whose sum is σ = 49342080. Its totient is φ = 10333440.

The previous prime is 23038913. The next prime is 23038933. The reversal of 23038928 is 82983032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13076 + ... + 14732.

It is an arithmetic number, because the mean of its divisors is an integer number (1233552).

Almost surely, 223038928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23038928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24671040).

23038928 is an abundant number, since it is smaller than the sum of its proper divisors (26303152).

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

23038928 is a wasteful number, since it uses less digits than its factorization.

23038928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 23038928 is about 4799.8883320344. Note that the first 3 decimals coincide. The cubic root of 23038928 is about 284.5470511083.

The spelling of 23038928 in words is "twenty-three million, thirty-eight thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 11 16 22 44 79 88 158 176 316 632 869 1264 1657 1738 3314 3476 6628 6952 13256 13904 18227 26512 36454 72908 130903 145816 261806 291632 523612 1047224 1439933 2094448 2879866 5759732 11519464 23038928