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80667041 = 7132393709
BaseRepresentation
bin1001100111011…
…10000110100001
312121210022101012
410303232012201
5131122321131
612000550305
71666441610
oct463560641
9177708335
1080667041
1141597384
1223022395
1313934ba0
14a9db877
15713652b
hex4cee1a1

80667041 has 16 divisors (see below), whose sum is σ = 99724800. Its totient is φ = 63540288.

The previous prime is 80667031. The next prime is 80667047. The reversal of 80667041 is 14076608.

It is not a de Polignac number, because 80667041 - 26 = 80666977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80666989 and 80667007.

It is not an unprimeable number, because it can be changed into a prime (80667047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19895 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (6232800).

Almost surely, 280667041 is an apocalyptic number.

It is an amenable number.

80667041 is a deficient number, since it is larger than the sum of its proper divisors (19057759).

80667041 is a wasteful number, since it uses less digits than its factorization.

80667041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 80667041 is about 8981.4832294004. The cubic root of 80667041 is about 432.0812050849.

The spelling of 80667041 in words is "eighty million, six hundred sixty-seven thousand, forty-one".

Divisors: 1 7 13 91 239 1673 3107 3709 21749 25963 48217 337519 886451 6205157 11523863 80667041