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580780139 = 2861202999
BaseRepresentation
bin100010100111100…
…000000001101011
31111110211200120112
4202213200001223
52142134431024
6133344044535
720251356362
oct4247400153
91443750515
10580780139
11278920795
1214260374b
13934295b4
14571c27d9
1535ec300e
hex229e006b

580780139 has 4 divisors (see below), whose sum is σ = 580986000. Its totient is φ = 580574280.

The previous prime is 580780121. The next prime is 580780147. The reversal of 580780139 is 931087085.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 580780139 - 220 = 579731563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 580780096 and 580780105.

It is not an unprimeable number, because it can be changed into a prime (580780169) 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, 98639 + ... + 104360.

It is an arithmetic number, because the mean of its divisors is an integer number (145246500).

Almost surely, 2580780139 is an apocalyptic number.

580780139 is a deficient number, since it is larger than the sum of its proper divisors (205861).

580780139 is a wasteful number, since it uses less digits than its factorization.

580780139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205860.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 580780139 is about 24099.3804692154. The cubic root of 580780139 is about 834.3288325795.

The spelling of 580780139 in words is "five hundred eighty million, seven hundred eighty thousand, one hundred thirty-nine".

Divisors: 1 2861 202999 580780139