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80746974 = 2327111723149
BaseRepresentation
bin1001101000000…
…01100111011110
312121221101000200
410310001213132
5131132400344
612002404330
72000223630
oct464014736
9177841020
1080746974
1141641440
12230606a6
1313962399
14aa1ca50
157150069
hex4d019de

80746974 has 192 divisors, whose sum is σ = 242611200. Its totient is φ = 18754560.

The previous prime is 80746961. The next prime is 80747027. The reversal of 80746974 is 47964708.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 541852 + ... + 542000.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 280746974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80746974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121305600).

80746974 is an abundant number, since it is smaller than the sum of its proper divisors (161864226).

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

80746974 is a wasteful number, since it uses less digits than its factorization.

80746974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 80746974 is about 8985.9320050844. The cubic root of 80746974 is about 432.2238744455.

The spelling of 80746974 in words is "eighty million, seven hundred forty-six thousand, nine hundred seventy-four".