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80719001 = 1120633557
BaseRepresentation
bin1001100111110…
…10110010011001
312121212221122122
410303322302121
5131131002001
612002031025
72000046236
oct463726231
9177787578
1080719001
1141622420
1223048475
131395272c
14aa1278d
157146b1b
hex4cfac99

80719001 has 8 divisors (see below), whose sum is σ = 88124544. Its totient is φ = 73324720.

The previous prime is 80718997. The next prime is 80719007. The reversal of 80719001 is 10091708.

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 80719001 - 22 = 80718997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80719007) 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, 20915 + ... + 24471.

It is an arithmetic number, because the mean of its divisors is an integer number (11015568).

Almost surely, 280719001 is an apocalyptic number.

It is an amenable number.

80719001 is a deficient number, since it is larger than the sum of its proper divisors (7405543).

80719001 is a wasteful number, since it uses less digits than its factorization.

80719001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 80719001 is about 8984.3753817391. The cubic root of 80719001 is about 432.1739572194.

The spelling of 80719001 in words is "eighty million, seven hundred nineteen thousand, one".

Divisors: 1 11 2063 3557 22693 39127 7338091 80719001