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1445300 = 225297149
BaseRepresentation
bin101100000110110110100
32201102120122
411200312310
5332222200
650551112
715166463
oct5406664
92642518
101445300
118a796a
12598498
133b7b0c
142989da
151d8385
hex160db4

1445300 has 36 divisors (see below), whose sum is σ = 3189900. Its totient is φ = 568320.

The previous prime is 1445287. The next prime is 1445303. The reversal of 1445300 is 35441.

It can be written as a sum of positive squares in 6 ways, for example, as 204304 + 1240996 = 452^2 + 1114^2 .

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9626 + ... + 9774.

21445300 is an apocalyptic number.

1445300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594950).

1445300 is an abundant number, since it is smaller than the sum of its proper divisors (1744600).

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

1445300 is a wasteful number, since it uses less digits than its factorization.

1445300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1445300 is about 1202.2063050908. The cubic root of 1445300 is about 113.0626952580.

The spelling of 1445300 in words is "one million, four hundred forty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 97 100 149 194 298 388 485 596 745 970 1490 1940 2425 2980 3725 4850 7450 9700 14453 14900 28906 57812 72265 144530 289060 361325 722650 1445300