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80946474 = 2371927297
BaseRepresentation
bin1001101001100…
…10010100101010
312122022111200120
410310302110222
5131210241344
612010544110
72002014360
oct464622452
9178274616
1080946474
1141768314
1223138036
1313a0212b
14aa71630
15718e219
hex4d3252a

80946474 has 16 divisors (see below), whose sum is σ = 185020608. Its totient is φ = 23127552.

The previous prime is 80946473. The next prime is 80946521. The reversal of 80946474 is 47464908.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1927297 = 80946474 / (8 + 0 + 9 + 4 + 6 + 4 + 7 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80946473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963607 + ... + 963690.

It is an arithmetic number, because the mean of its divisors is an integer number (11563788).

Almost surely, 280946474 is an apocalyptic number.

80946474 is an abundant number, since it is smaller than the sum of its proper divisors (104074134).

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

80946474 is a wasteful number, since it uses less digits than its factorization.

80946474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927309.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 80946474 is about 8997.0258419102. The cubic root of 80946474 is about 432.5795441030.

The spelling of 80946474 in words is "eighty million, nine hundred forty-six thousand, four hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 1927297 3854594 5781891 11563782 13491079 26982158 40473237 80946474