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23001530 = 252300153
BaseRepresentation
bin101011110111…
…1100110111010
31121021121011112
41113233212322
521342022110
62141000322
7366336566
oct127574672
947247145
1023001530
1111a90432
1278530a2
1349c4696
1430aa6a6
152045405
hex15ef9ba

23001530 has 8 divisors (see below), whose sum is σ = 41402772. Its totient is φ = 9200608.

The previous prime is 23001509. The next prime is 23001551. The reversal of 23001530 is 3510032.

It is an interprime number because it is at equal distance from previous prime (23001509) and next prime (23001551).

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 2380849 = 4541^2 + 1543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150067 + ... + 1150086.

Almost surely, 223001530 is an apocalyptic number.

23001530 is a deficient number, since it is larger than the sum of its proper divisors (18401242).

23001530 is a wasteful number, since it uses less digits than its factorization.

23001530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300160.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 23001530 is about 4795.9910341868. The cubic root of 23001530 is about 284.3930038112.

Adding to 23001530 its reverse (3510032), we get a palindrome (26511562).

The spelling of 23001530 in words is "twenty-three million, one thousand, five hundred thirty".

Divisors: 1 2 5 10 2300153 4600306 11500765 23001530