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23065530 = 235768851
BaseRepresentation
bin101011111111…
…1001110111010
31121101211221220
41113333032322
521401044110
62142212510
7400024305
oct127771672
947354856
1023065530
1112024524
127884136
134a17857
1430c5b3c
152059370
hex15ff3ba

23065530 has 16 divisors (see below), whose sum is σ = 55357344. Its totient is φ = 6150800.

The previous prime is 23065517. The next prime is 23065543. The reversal of 23065530 is 3556032.

It is an interprime number because it is at equal distance from previous prime (23065517) and next prime (23065543).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23065530.

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, 384396 + ... + 384455.

It is an arithmetic number, because the mean of its divisors is an integer number (3459834).

Almost surely, 223065530 is an apocalyptic number.

23065530 is an abundant number, since it is smaller than the sum of its proper divisors (32291814).

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

23065530 is a wasteful number, since it uses less digits than its factorization.

23065530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768861.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 23065530 is about 4802.6586387125. The cubic root of 23065530 is about 284.6565268202.

The spelling of 23065530 in words is "twenty-three million, sixty-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 768851 1537702 2306553 3844255 4613106 7688510 11532765 23065530