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80628695 = 572303677
BaseRepresentation
bin1001100111001…
…00101111010111
312121201100202222
410303210233113
5131120104240
612000052555
71666222040
oct463445727
9177640688
1080628695
1141570594
122300415b
13139205b4
14a9cb8c7
157129eb5
hex4ce4bd7

80628695 has 8 divisors (see below), whose sum is σ = 110576544. Its totient is φ = 55288224.

The previous prime is 80628689. The next prime is 80628697. The reversal of 80628695 is 59682608.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80628695 - 24 = 80628679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80628697) 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, 1151804 + ... + 1151873.

It is an arithmetic number, because the mean of its divisors is an integer number (13822068).

Almost surely, 280628695 is an apocalyptic number.

80628695 is a deficient number, since it is larger than the sum of its proper divisors (29947849).

80628695 is a wasteful number, since it uses less digits than its factorization.

80628695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303689.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 80628695 is about 8979.3482502908. The cubic root of 80628695 is about 432.0127293203.

The spelling of 80628695 in words is "eighty million, six hundred twenty-eight thousand, six hundred ninety-five".

Divisors: 1 5 7 35 2303677 11518385 16125739 80628695