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23302428 = 2232922309
BaseRepresentation
bin101100011100…
…1000100011100
31121211212220220
41120321010130
521431134203
62151241340
7402032052
oct130710434
947755826
1023302428
1112176506
127979250
134a9b626
1431481d2
1520a4653
hex163911c

23302428 has 36 divisors (see below), whose sum is σ = 56336280. Its totient is φ = 7496384.

The previous prime is 23302423. The next prime is 23302439. The reversal of 23302428 is 82420332.

It is a junction number, because it is equal to n+sod(n) for n = 23302398 and 23302407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23302423) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8938 + ... + 11246.

Almost surely, 223302428 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 23302428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28168140).

23302428 is an abundant number, since it is smaller than the sum of its proper divisors (33033852).

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

23302428 is a wasteful number, since it uses less digits than its factorization.

23302428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 23302428 is about 4827.2588494921. The cubic root of 23302428 is about 285.6277452665.

The spelling of 23302428 in words is "twenty-three million, three hundred two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 841 1682 2309 2523 3364 4618 5046 6927 9236 10092 13854 27708 66961 133922 200883 267844 401766 803532 1941869 3883738 5825607 7767476 11651214 23302428