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2058780 = 223534313
BaseRepresentation
bin111110110101000011100
310212121010010
413312220130
51011340110
6112043220
723333163
oct7665034
93777103
102058780
111186879
12833510
13571119
143b83da
152aa020
hex1f6a1c

2058780 has 24 divisors (see below), whose sum is σ = 5764752. Its totient is φ = 548992.

The previous prime is 2058773. The next prime is 2058781. The reversal of 2058780 is 878502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2058781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17097 + ... + 17216.

It is an arithmetic number, because the mean of its divisors is an integer number (240198).

22058780 is an apocalyptic number.

2058780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2058780 is an abundant number, since it is smaller than the sum of its proper divisors (3705972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2058780 is a wasteful number, since it uses less digits than its factorization.

2058780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34325 (or 34323 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2058780 is about 1434.8449393576. The cubic root of 2058780 is about 127.2145092424.

The spelling of 2058780 in words is "two million, fifty-eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 34313 68626 102939 137252 171565 205878 343130 411756 514695 686260 1029390 2058780