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73230222 = 23131496301
BaseRepresentation
bin1000101110101…
…10011110001110
312002210110222110
410113112132032
5122221331342
611133324450
71546306122
oct427263616
9162713873
1073230222
1138377a4a
1220636726
131222cbc0
149a23582
156667c9c
hex45d678e

73230222 has 32 divisors (see below), whose sum is σ = 158810400. Its totient is φ = 22377600.

The previous prime is 73230211. The next prime is 73230239. The reversal of 73230222 is 22203237.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8472 + ... + 14772.

It is an arithmetic number, because the mean of its divisors is an integer number (4962825).

Almost surely, 273230222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73230222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79405200).

73230222 is an abundant number, since it is smaller than the sum of its proper divisors (85580178).

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

73230222 is a wasteful number, since it uses less digits than its factorization.

73230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 73230222 is about 8557.4658632097. The cubic root of 73230222 is about 418.3728082762.

Adding to 73230222 its reverse (22203237), we get a palindrome (95433459).

The spelling of 73230222 in words is "seventy-three million, two hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 149 298 447 894 1937 3874 5811 6301 11622 12602 18903 37806 81913 163826 245739 491478 938849 1877698 2816547 5633094 12205037 24410074 36615111 73230222