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80989458621 = 3174711545217
BaseRepresentation
bin100101101101101011…
…0010001000010111101
321202001021221210001120
41023123112101002331
52311331300133441
6101112301101153
75564665016421
oct1133326210275
9252037853046
1080989458621
113139048aa85
12138432577b9
137839120ba6
143cc4340b81
1521902bb966
hex12db5910bd

80989458621 has 8 divisors (see below), whose sum is σ = 107992195584. Its totient is φ = 53989847040.

The previous prime is 80989458559. The next prime is 80989458643. The reversal of 80989458621 is 12685498908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80989458621 - 27 = 80989458493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80989450621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720196 + ... + 825021.

It is an arithmetic number, because the mean of its divisors is an integer number (13499024448).

Almost surely, 280989458621 is an apocalyptic number.

It is an amenable number.

80989458621 is a deficient number, since it is larger than the sum of its proper divisors (27002736963).

80989458621 is a wasteful number, since it uses less digits than its factorization.

80989458621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562691.

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 80989458621 in words is "eighty billion, nine hundred eighty-nine million, four hundred fifty-eight thousand, six hundred twenty-one".

Divisors: 1 3 17471 52413 1545217 4635651 26996486207 80989458621