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23163345 = 325514741
BaseRepresentation
bin101100001011…
…1000111010001
31121120211010200
41120113013101
521412211340
62144245413
7400612422
oct130270721
947524120
1023163345
1112090a67
127910869
134a5022a
14310d649
152078330
hex16171d1

23163345 has 12 divisors (see below), whose sum is σ = 40149876. Its totient is φ = 12353760.

The previous prime is 23163331. The next prime is 23163359. The reversal of 23163345 is 54336132.

It is a happy number.

23163345 is a `hidden beast` number, since 2 + 316 + 3 + 345 = 666.

It is an interprime number because it is at equal distance from previous prime (23163331) and next prime (23163359).

It can be written as a sum of positive squares in 2 ways, for example, as 9235521 + 13927824 = 3039^2 + 3732^2 .

It is not a de Polignac number, because 23163345 - 29 = 23162833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257326 + ... + 257415.

It is an arithmetic number, because the mean of its divisors is an integer number (3345823).

Almost surely, 223163345 is an apocalyptic number.

It is an amenable number.

23163345 is a deficient number, since it is larger than the sum of its proper divisors (16986531).

23163345 is a wasteful number, since it uses less digits than its factorization.

23163345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514752 (or 514749 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 23163345 is about 4812.8312872986. The cubic root of 23163345 is about 285.0583444724.

Adding to 23163345 its reverse (54336132), we get a palindrome (77499477).

The spelling of 23163345 in words is "twenty-three million, one hundred sixty-three thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 45 514741 1544223 2573705 4632669 7721115 23163345