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80628682 = 240314341
BaseRepresentation
bin1001100111001…
…00101111001010
312121201100202111
410303210233022
5131120104212
612000052534
71666222021
oct463445712
9177640674
1080628682
1141570582
122300414a
13139205a4
14a9cb8b8
157129ea7
hex4ce4bca

80628682 has 4 divisors (see below), whose sum is σ = 120943026. Its totient is φ = 40314340.

The previous prime is 80628679. The next prime is 80628683. The reversal of 80628682 is 28682608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80622441 + 6241 = 8979^2 + 79^2 .

It is a super-2 number, since 2×806286822 = 13001968722114248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80628683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157169 + ... + 20157172.

Almost surely, 280628682 is an apocalyptic number.

80628682 is a deficient number, since it is larger than the sum of its proper divisors (40314344).

80628682 is a wasteful number, since it uses less digits than its factorization.

80628682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40314343.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 80628682 is about 8979.3475264075. The cubic root of 80628682 is about 432.0127061020.

The spelling of 80628682 in words is "eighty million, six hundred twenty-eight thousand, six hundred eighty-two".

Divisors: 1 2 40314341 80628682