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80983469 = 711569067
BaseRepresentation
bin1001101001110…
…11010110101101
312122101101102202
410310323112231
5131212432334
612011431245
72002230260
oct464732655
9178341382
1080983469
1141793096
1223155525
1313a15c18
14aa80cd7
15719a17e
hex4d3b5ad

80983469 has 4 divisors (see below), whose sum is σ = 92552544. Its totient is φ = 69414396.

The previous prime is 80983451. The next prime is 80983489. The reversal of 80983469 is 96438908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80983469 - 212 = 80979373 is a prime.

It is a super-2 number, since 2×809834692 = 13116644502547922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80983489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5784527 + ... + 5784540.

It is an arithmetic number, because the mean of its divisors is an integer number (23138136).

Almost surely, 280983469 is an apocalyptic number.

It is an amenable number.

80983469 is a deficient number, since it is larger than the sum of its proper divisors (11569075).

80983469 is a wasteful number, since it uses less digits than its factorization.

80983469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569074.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 80983469 is about 8999.0815642487. The cubic root of 80983469 is about 432.6454347345.

The spelling of 80983469 in words is "eighty million, nine hundred eighty-three thousand, four hundred sixty-nine".

Divisors: 1 7 11569067 80983469