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23000450 = 25211193171
BaseRepresentation
bin101011110111…
…1010110000010
31121021112200112
41113233112002
521342003300
62140551322
7366333464
oct127572602
947245615
1023000450
1111a8a640
127852542
1349c4045
1430aa134
152044e35
hex15ef582

23000450 has 96 divisors (see below), whose sum is σ = 51425280. Its totient is φ = 7560000.

The previous prime is 23000447. The next prime is 23000459. The reversal of 23000450 is 5400032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 323915 + ... + 323985.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 223000450 is an apocalyptic number.

23000450 is an abundant number, since it is smaller than the sum of its proper divisors (28424830).

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

23000450 is a wasteful number, since it uses less digits than its factorization.

23000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 23000450 is about 4795.8784388264. The cubic root of 23000450 is about 284.3885526689.

Adding to 23000450 its reverse (5400032), we get a palindrome (28400482).

The spelling of 23000450 in words is "twenty-three million, four hundred fifty", and thus it is an aban number.

Divisors: 1 2 5 10 11 19 22 25 31 38 50 55 62 71 95 110 142 155 190 209 275 310 341 355 418 475 550 589 682 710 775 781 950 1045 1178 1349 1550 1562 1705 1775 2090 2201 2698 2945 3410 3550 3905 4402 5225 5890 6479 6745 7810 8525 10450 11005 12958 13490 14725 14839 17050 19525 22010 24211 29450 29678 32395 33725 39050 41819 48422 55025 64790 67450 74195 83638 110050 121055 148390 161975 209095 242110 323950 370975 418190 460009 605275 741950 920018 1045475 1210550 2090950 2300045 4600090 11500225 23000450