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80897220001 = 1312594942703
BaseRepresentation
bin100101101010111011…
…0011001110110100001
321201210212101120110101
41023111312121312201
52311134142020001
6101055204102401
75562465011233
oct1132566316641
9251725346411
1080897220001
113134340a814
1213818394a01
137822c97020
143cb5db0253
15218714ba01
hex12d5d99da1

80897220001 has 8 divisors (see below), whose sum is σ = 87189298560. Its totient is φ = 74615029392.

The previous prime is 80897219947. The next prime is 80897220067. The reversal of 80897220001 is 10002279808.

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 80897220001 - 211 = 80897217953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80897220091) 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, 2454985 + ... + 2487718.

It is an arithmetic number, because the mean of its divisors is an integer number (10898662320).

Almost surely, 280897220001 is an apocalyptic number.

It is an amenable number.

80897220001 is a deficient number, since it is larger than the sum of its proper divisors (6292078559).

80897220001 is a wasteful number, since it uses less digits than its factorization.

80897220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943975.

The product of its (nonzero) digits is 16128, while the sum is 37.

Adding to 80897220001 its reverse (10002279808), we get a palindrome (90899499809).

The spelling of 80897220001 in words is "eighty billion, eight hundred ninety-seven million, two hundred twenty thousand, one".

Divisors: 1 13 1259 16367 4942703 64255139 6222863077 80897220001