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80874720 = 2533597193
BaseRepresentation
bin1001101001000…
…00110011100000
312122011212021000
410310200303200
5131200442340
612005232000
72001265233
oct464406340
9178155230
1080874720
1141719413
1223102600
13139a8584
14aa5341a
157177d30
hex4d20ce0

80874720 has 192 divisors, whose sum is σ = 287461440. Its totient is φ = 21233664.

The previous prime is 80874719. The next prime is 80874737. The reversal of 80874720 is 2747808.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 418944 + ... + 419136.

It is an arithmetic number, because the mean of its divisors is an integer number (1497195).

Almost surely, 280874720 is an apocalyptic number.

80874720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80874720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143730720).

80874720 is an abundant number, since it is smaller than the sum of its proper divisors (206586720).

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

80874720 is a wasteful number, since it uses less digits than its factorization.

80874720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 80874720 is about 8993.0373067168. The cubic root of 80874720 is about 432.4516880558.

Adding to 80874720 its product of nonzero digits (25088), we get a palindrome (80899808).

The spelling of 80874720 in words is "eighty million, eight hundred seventy-four thousand, seven hundred twenty".