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22990950 = 23252192689
BaseRepresentation
bin101011110110…
…1000001100110
31121021001122200
41113231001212
521341202300
62140435330
7366264003
oct127550146
947231580
1022990950
1111a83494
127848b46
1349bc918
1430a68aa
152042200
hex15ed066

22990950 has 72 divisors (see below), whose sum is σ = 65044200. Its totient is φ = 5806080.

The previous prime is 22990927. The next prime is 22990951. The reversal of 22990950 is 5909922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990951) 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 35 ways as a sum of consecutive naturals, for example, 7206 + ... + 9894.

Almost surely, 222990950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22990950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32522100).

22990950 is an abundant number, since it is smaller than the sum of its proper divisors (42053250).

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

22990950 is a wasteful number, since it uses less digits than its factorization.

22990950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 22990950 is about 4794.8879027564. The cubic root of 22990950 is about 284.3493930974.

The spelling of 22990950 in words is "twenty-two million, nine hundred ninety thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 19 25 30 38 45 50 57 75 90 95 114 150 171 190 225 285 342 450 475 570 855 950 1425 1710 2689 2850 4275 5378 8067 8550 13445 16134 24201 26890 40335 48402 51091 67225 80670 102182 121005 134450 153273 201675 242010 255455 306546 403350 459819 510910 605025 766365 919638 1210050 1277275 1532730 2299095 2554550 3831825 4598190 7663650 11495475 22990950