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23730530 = 258328591
BaseRepresentation
bin101101010000…
…1100101100010
31122122122011112
41122201211202
522033334110
62204343322
7405464135
oct132414542
948578145
1023730530
111243910a
127b44b42
134bbb445
14321a21c
15213b405
hex16a1962

23730530 has 16 divisors (see below), whose sum is σ = 43231104. Its totient is φ = 9377520.

The previous prime is 23730523. The next prime is 23730541. The reversal of 23730530 is 3503732.

It is a junction number, because it is equal to n+sod(n) for n = 23730496 and 23730505.

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, 13466 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (2701944).

Almost surely, 223730530 is an apocalyptic number.

23730530 is a deficient number, since it is larger than the sum of its proper divisors (19500574).

23730530 is a wasteful number, since it uses less digits than its factorization.

23730530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28681.

The product of its (nonzero) digits is 1890, while the sum is 23.

The square root of 23730530 is about 4871.3991829863. The cubic root of 23730530 is about 287.3662843847.

The spelling of 23730530 in words is "twenty-three million, seven hundred thirty thousand, five hundred thirty".

Divisors: 1 2 5 10 83 166 415 830 28591 57182 142955 285910 2373053 4746106 11865265 23730530