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80989141 = 232925379
BaseRepresentation
bin1001101001111…
…00101111010101
312122101200012211
410310330233111
5131213123031
612011513421
72002252642
oct464745725
9178350184
1080989141
1141797382
1223158871
1313a1868c
14aa82dc9
15719bbb1
hex4d3cbd5

80989141 has 24 divisors (see below), whose sum is σ = 90305280. Its totient is φ = 72456384.

The previous prime is 80989133. The next prime is 80989147. The reversal of 80989141 is 14198908.

It is not a de Polignac number, because 80989141 - 23 = 80989133 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80989094 and 80989103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80989147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1025140 + ... + 1025218.

It is an arithmetic number, because the mean of its divisors is an integer number (3762720).

Almost surely, 280989141 is an apocalyptic number.

It is an amenable number.

80989141 is a deficient number, since it is larger than the sum of its proper divisors (9316139).

80989141 is a wasteful number, since it uses less digits than its factorization.

80989141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 80989141 is about 8999.3967020018. The cubic root of 80989141 is about 432.6555351811.

The spelling of 80989141 in words is "eighty million, nine hundred eighty-nine thousand, one hundred forty-one".

Divisors: 1 23 29 53 79 667 841 1219 1537 1817 2291 4187 19343 35351 44573 52693 66439 96301 121423 1025179 1528097 2792729 3521267 80989141