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344225000 = 235572281
BaseRepresentation
bin10100100001000…
…111010011101000
3212222201102221002
4110201013103220
51201110200000
654053534132
711346602300
oct2441072350
9788642832
10344225000
11167340379
1297344348
1356413742
1433a06600
15203478d5
hex148474e8

344225000 has 144 divisors (see below), whose sum is σ = 941775660. Its totient is φ = 117600000.

The previous prime is 344224973. The next prime is 344225009. The reversal of 344225000 is 522443.

It can be written as a sum of positive squares in 6 ways, for example, as 23600164 + 320624836 = 4858^2 + 17906^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344225009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1224860 + ... + 1225140.

Almost surely, 2344225000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470887830).

344225000 is an abundant number, since it is smaller than the sum of its proper divisors (597550660).

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

344225000 is an equidigital number, since it uses as much as digits as its factorization.

344225000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 344225000 is about 18553.3015929780. The cubic root of 344225000 is about 700.8323432335.

Adding to 344225000 its reverse (522443), we get a palindrome (344747443).

The spelling of 344225000 in words is "three hundred forty-four million, two hundred twenty-five thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 49 50 56 70 98 100 125 140 175 196 200 245 250 280 281 350 392 490 500 562 625 700 875 980 1000 1124 1225 1250 1400 1405 1750 1960 1967 2248 2450 2500 2810 3125 3500 3934 4375 4900 5000 5620 6125 6250 7000 7025 7868 8750 9800 9835 11240 12250 12500 13769 14050 15736 17500 19670 21875 24500 25000 27538 28100 30625 35000 35125 39340 43750 49000 49175 55076 56200 61250 68845 70250 78680 87500 98350 110152 122500 137690 140500 153125 175000 175625 196700 245000 245875 275380 281000 306250 344225 351250 393400 491750 550760 612500 688450 702500 878125 983500 1225000 1229375 1376900 1405000 1721125 1756250 1967000 2458750 2753800 3442250 3512500 4917500 6146875 6884500 7025000 8605625 9835000 12293750 13769000 17211250 24587500 34422500 43028125 49175000 68845000 86056250 172112500 344225000