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23350145 = 5713193773
BaseRepresentation
bin101100100010…
…0101110000001
31121221022101012
41121010232001
521434201040
62152250305
7402321140
oct131045601
947838335
1023350145
11121a9345
1279a0995
134ab7270
14315b757
1520b3865
hex1644b81

23350145 has 64 divisors (see below), whose sum is σ = 37793280. Its totient is φ = 13436928.

The previous prime is 23350127. The next prime is 23350147. The reversal of 23350145 is 54105332.

It is a cyclic number.

It is not a de Polignac number, because 23350145 - 26 = 23350081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23350145.

It is not an unprimeable number, because it can be changed into a prime (23350147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 319829 + ... + 319901.

It is an arithmetic number, because the mean of its divisors is an integer number (590520).

Almost surely, 223350145 is an apocalyptic number.

It is an amenable number.

23350145 is a deficient number, since it is larger than the sum of its proper divisors (14443135).

23350145 is a wasteful number, since it uses less digits than its factorization.

23350145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 23350145 is about 4832.1987748850. The cubic root of 23350145 is about 285.8225748448.

Adding to 23350145 its reverse (54105332), we get a palindrome (77455477).

The spelling of 23350145 in words is "twenty-three million, three hundred fifty thousand, one hundred forty-five".

Divisors: 1 5 7 13 19 35 37 65 73 91 95 133 185 247 259 365 455 481 511 665 703 949 1235 1295 1387 1729 2405 2555 2701 3367 3515 4745 4921 6643 6935 8645 9139 9709 13505 16835 18031 18907 24605 33215 35113 45695 48545 51319 63973 90155 94535 126217 175565 245791 256595 319865 359233 631085 667147 1228955 1796165 3335735 4670029 23350145