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22202250 = 235374229
BaseRepresentation
bin101010010110…
…0011110001010
31112202222202120
41110230132022
521140433000
62111512110
7356500410
oct124543612
945688676
1022202250
1111594974
127528636
1347a4935
142d3d2b0
151e386a0
hex152c78a

22202250 has 64 divisors (see below), whose sum is σ = 63348480. Its totient is φ = 5073600.

The previous prime is 22202249. The next prime is 22202261. The reversal of 22202250 is 5220222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3136 + ... + 7364.

It is an arithmetic number, because the mean of its divisors is an integer number (989820).

Almost surely, 222202250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31674240).

22202250 is an abundant number, since it is smaller than the sum of its proper divisors (41146230).

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

22202250 is a wasteful number, since it uses less digits than its factorization.

22202250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 22202250 is about 4711.9263576588. The cubic root of 22202250 is about 281.0599703988.

Adding to 22202250 its reverse (5220222), we get a palindrome (27422472).

The spelling of 22202250 in words is "twenty-two million, two hundred two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 125 150 175 210 250 350 375 525 750 875 1050 1750 2625 4229 5250 8458 12687 21145 25374 29603 42290 59206 63435 88809 105725 126870 148015 177618 211450 296030 317175 444045 528625 634350 740075 888090 1057250 1480150 1585875 2220225 3171750 3700375 4440450 7400750 11101125 22202250