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80131683 = 31931101449
BaseRepresentation
bin1001100011010…
…11011001100011
312120210010000010
410301223121203
5131003203213
611541300003
71662052032
oct461533143
9176703003
1080131683
1141261135
1222a04603
13137a82c8
14a8dc719
15707cac3
hex4c6b663

80131683 has 32 divisors (see below), whose sum is σ = 117504000. Its totient is φ = 48384000.

The previous prime is 80131633. The next prime is 80131687. The reversal of 80131683 is 38613108.

It is not a de Polignac number, because 80131683 - 26 = 80131619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80131683.

It is not an unprimeable number, because it can be changed into a prime (80131687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178243 + ... + 178691.

It is an arithmetic number, because the mean of its divisors is an integer number (3672000).

Almost surely, 280131683 is an apocalyptic number.

80131683 is a deficient number, since it is larger than the sum of its proper divisors (37372317).

80131683 is a wasteful number, since it uses less digits than its factorization.

80131683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 80131683 is about 8951.6301867314. The cubic root of 80131683 is about 431.1232270929.

The spelling of 80131683 in words is "eighty million, one hundred thirty-one thousand, six hundred eighty-three".

Divisors: 1 3 19 31 57 93 101 303 449 589 1347 1767 1919 3131 5757 8531 9393 13919 25593 41757 45349 59489 136047 178467 264461 793383 861631 1405819 2584893 4217457 26710561 80131683