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80088697 = 138969221
BaseRepresentation
bin1001100011000…
…00111001111001
312120200221001001
410301200321321
5131000314242
611540325001
71661512513
oct461407171
9176627031
1080088697
1141231907
12229a3761
1313791880
14a8cabb3
15706eeb7
hex4c60e79

80088697 has 8 divisors (see below), whose sum is σ = 87219720. Its totient is φ = 73096320.

The previous prime is 80088689. The next prime is 80088707. The reversal of 80088697 is 79688008.

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 80084601 = 64^2 + 8949^2 .

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 80088697 - 23 = 80088689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80088607) 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 7 ways as a sum of consecutive naturals, for example, 33454 + ... + 35767.

It is an arithmetic number, because the mean of its divisors is an integer number (10902465).

Almost surely, 280088697 is an apocalyptic number.

It is an amenable number.

80088697 is a deficient number, since it is larger than the sum of its proper divisors (7131023).

80088697 is a wasteful number, since it uses less digits than its factorization.

80088697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69323.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 80088697 is about 8949.2288494596. The cubic root of 80088697 is about 431.0461224357.

Subtracting from 80088697 its reverse (79688008), we obtain a square (400689 = 6332).

The spelling of 80088697 in words is "eighty million, eighty-eight thousand, six hundred ninety-seven".

Divisors: 1 13 89 1157 69221 899873 6160669 80088697