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80730446 = 242539491
BaseRepresentation
bin1001100111111…
…01100101001110
312121220112100112
410303331211032
5131131333241
612002200022
72000124506
oct463754516
9177815315
1080730446
114162aa85
1223053012
13139579c4
14aa16a06
15714a1eb
hex4cfd94e

80730446 has 8 divisors (see below), whose sum is σ = 121136904. Its totient is φ = 40351480.

The previous prime is 80730439. The next prime is 80730469. The reversal of 80730446 is 64403708.

It is a happy number.

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

It is a super-2 number, since 2×807304462 = 13034809822717832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761 + ... + 13251.

It is an arithmetic number, because the mean of its divisors is an integer number (15142113).

Almost surely, 280730446 is an apocalyptic number.

80730446 is a deficient number, since it is larger than the sum of its proper divisors (40406458).

80730446 is a wasteful number, since it uses less digits than its factorization.

80730446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 80730446 is about 8985.0122982665. The cubic root of 80730446 is about 432.1943819733.

The spelling of 80730446 in words is "eighty million, seven hundred thirty thousand, four hundred forty-six".

Divisors: 1 2 4253 8506 9491 18982 40365223 80730446