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8081600497 = 263191316063
BaseRepresentation
bin1111000011011001…
…10110111111110001
3202212012221211201221
413201230312333301
5113022342203442
63413532425041
7404161320325
oct74154667761
922765854657
108081600497
113477942083
121696618181
139ba413b39
14569469985
15324768467
hex1e1b36ff1

8081600497 has 8 divisors (see below), whose sum is σ = 8117074944. Its totient is φ = 8046162528.

The previous prime is 8081600479. The next prime is 8081600519. The reversal of 8081600497 is 7940061808.

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 8081600497 - 227 = 7947382769 is a prime.

It is a super-2 number, since 2×80816004972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8081600297) 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, 495088 + ... + 511150.

It is an arithmetic number, because the mean of its divisors is an integer number (1014634368).

Almost surely, 28081600497 is an apocalyptic number.

It is an amenable number.

8081600497 is a deficient number, since it is larger than the sum of its proper divisors (35474447).

8081600497 is a wasteful number, since it uses less digits than its factorization.

8081600497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18239.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 8081600497 is about 89897.7224238746. The cubic root of 8081600497 is about 2006.7770512665. Note that the first 3 decimals are identical.

The spelling of 8081600497 in words is "eight billion, eighty-one million, six hundred thousand, four hundred ninety-seven".

Divisors: 1 263 1913 16063 503119 4224569 30728519 8081600497