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80322030 = 2345531871
BaseRepresentation
bin1001100100110…
…01110111101110
312121010210010000
410302121313232
5131030301110
611545325130
71663504005
oct462316756
9177123100
1080322030
1141381148
1222a967a6
1313843b39
14a94bc3c
1570b91c0
hex4c99dee

80322030 has 80 divisors (see below), whose sum is σ = 220169664. Its totient is φ = 21003840.

The previous prime is 80322019. The next prime is 80322031. The reversal of 80322030 is 3022308.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80321994 and 80322012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80322031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41995 + ... + 43865.

Almost surely, 280322030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80322030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110084832).

80322030 is an abundant number, since it is smaller than the sum of its proper divisors (139847634).

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

80322030 is a wasteful number, since it uses less digits than its factorization.

80322030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 80322030 is about 8962.2558544152. The cubic root of 80322030 is about 431.4643244684.

Adding to 80322030 its reverse (3022308), we get a palindrome (83344338).

The spelling of 80322030 in words is "eighty million, three hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 53 54 81 90 106 135 159 162 265 270 318 405 477 530 795 810 954 1431 1590 1871 2385 2862 3742 4293 4770 5613 7155 8586 9355 11226 14310 16839 18710 21465 28065 33678 42930 50517 56130 84195 99163 101034 151551 168390 198326 252585 297489 303102 495815 505170 594978 757755 892467 991630 1487445 1515510 1784934 2677401 2974890 4462335 5354802 8032203 8924670 13387005 16064406 26774010 40161015 80322030