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80030474 = 2216118517
BaseRepresentation
bin1001100010100…
…10101100001010
312120120222011122
410301102230022
5130441433344
611535155242
71661150666
oct461225412
9176528148
1080030474
11411a2097
1222975b22
1313771214
14a8b38a6
15705caee
hex4c52b0a

80030474 has 8 divisors (see below), whose sum is σ = 120107748. Its totient is φ = 39994560.

The previous prime is 80030473. The next prime is 80030479. The reversal of 80030474 is 47403008.

It can be written as a sum of positive squares in 2 ways, for example, as 79834225 + 196249 = 8935^2 + 443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80030471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4937 + ... + 13580.

Almost surely, 280030474 is an apocalyptic number.

80030474 is a deficient number, since it is larger than the sum of its proper divisors (40077274).

80030474 is a wasteful number, since it uses less digits than its factorization.

80030474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20680.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 80030474 is about 8945.9752961877. The cubic root of 80030474 is about 430.9416429298.

The spelling of 80030474 in words is "eighty million, thirty thousand, four hundred seventy-four".

Divisors: 1 2 2161 4322 18517 37034 40015237 80030474