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80853671 = 239736241
BaseRepresentation
bin1001101000110…
…11101010100111
312122010210101102
410310123222213
5131144304141
612004550315
72001146663
oct464335247
9178123342
1080853671
1141704618
12230b239b
131399bb12
14aa498a3
15717199b
hex4d1baa7

80853671 has 8 divisors (see below), whose sum is σ = 85241184. Its totient is φ = 76538880.

The previous prime is 80853667. The next prime is 80853679. The reversal of 80853671 is 17635808.

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 80853671 - 22 = 80853667 is a prime.

It is a super-2 number, since 2×808536712 = 13074632228352482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80853679) 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, 15890 + ... + 20351.

It is an arithmetic number, because the mean of its divisors is an integer number (10655148).

Almost surely, 280853671 is an apocalyptic number.

80853671 is a deficient number, since it is larger than the sum of its proper divisors (4387513).

80853671 is a wasteful number, since it uses less digits than its factorization.

80853671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36361.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80853671 is about 8991.8669362930. The cubic root of 80853671 is about 432.4141672030.

The spelling of 80853671 in words is "eighty million, eight hundred fifty-three thousand, six hundred seventy-one".

Divisors: 1 23 97 2231 36241 833543 3515377 80853671