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2045550 = 2352131049
BaseRepresentation
bin111110011011001101110
310211220222010
413303121232
51010424200
6111502050
723246463
oct7633156
93756863
102045550
111177941
12827926
135680b0
143b366a
152a6150
hex1f366e

2045550 has 48 divisors (see below), whose sum is σ = 5468400. Its totient is φ = 503040.

The previous prime is 2045543. The next prime is 2045557. The reversal of 2045550 is 555402.

It is an interprime number because it is at equal distance from previous prime (2045543) and next prime (2045557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045557) 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, 1426 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (113925).

22045550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2734200).

2045550 is an abundant number, since it is smaller than the sum of its proper divisors (3422850).

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

2045550 is a wasteful number, since it uses less digits than its factorization.

2045550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2045550 is about 1430.2272546697. The cubic root of 2045550 is about 126.9414242037.

The spelling of 2045550 in words is "two million, forty-five thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1049 1950 2098 3147 5245 6294 10490 13637 15735 26225 27274 31470 40911 52450 68185 78675 81822 136370 157350 204555 340925 409110 681850 1022775 2045550