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23133285 = 32572331103
BaseRepresentation
bin101100000111…
…1110001100101
31121112021220100
41120033301211
521410231120
62143454313
7400425660
oct130176145
947467810
1023133285
111207041a
1278b7399
134a3c646
1431026d7
15206e490
hex160fc65

23133285 has 96 divisors (see below), whose sum is σ = 49840128. Its totient is φ = 9694080.

The previous prime is 23133283. The next prime is 23133287. The reversal of 23133285 is 58233132.

It is an interprime number because it is at equal distance from previous prime (23133283) and next prime (23133287).

It is not a de Polignac number, because 23133285 - 21 = 23133283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 224544 + ... + 224646.

It is an arithmetic number, because the mean of its divisors is an integer number (519168).

Almost surely, 223133285 is an apocalyptic number.

It is an amenable number.

23133285 is an abundant number, since it is smaller than the sum of its proper divisors (26706843).

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

23133285 is a wasteful number, since it uses less digits than its factorization.

23133285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 172 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 23133285 is about 4809.7073715560. The cubic root of 23133285 is about 284.9349805509.

The spelling of 23133285 in words is "twenty-three million, one hundred thirty-three thousand, two hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 23 31 35 45 63 69 93 103 105 115 155 161 207 217 279 309 315 345 465 483 515 651 713 721 805 927 1035 1085 1395 1449 1545 1953 2139 2163 2369 2415 3193 3255 3565 3605 4635 4991 6417 6489 7107 7245 9579 9765 10695 10815 11845 14973 15965 16583 21321 22351 24955 28737 32085 32445 35535 44919 47895 49749 67053 73439 74865 82915 106605 111755 143685 149247 201159 220317 224595 248745 335265 367195 514073 660951 746235 1005795 1101585 1542219 2570365 3304755 4626657 7711095 23133285