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244345420 = 225111779827
BaseRepresentation
bin11101001000001…
…10101001001100
3122000210000220101
432210012221030
51000023023140
640125100444
76024621214
oct1644065114
9560700811
10244345420
11115a21370
12699b7724
133b8129b7
1424647244
15166b899a
hexe906a4c

244345420 has 96 divisors (see below), whose sum is σ = 600929280. Its totient is φ = 82467840.

The previous prime is 244345397. The next prime is 244345421. The reversal of 244345420 is 24543442.

It is not an unprimeable number, because it can be changed into a prime (244345421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295047 + ... + 295873.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2244345420 is an apocalyptic number.

244345420 is a gapful number since it is divisible by the number (20) 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 244345420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300464640).

244345420 is an abundant number, since it is smaller than the sum of its proper divisors (356583860).

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

244345420 is a wasteful number, since it uses less digits than its factorization.

244345420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 244345420 is about 15631.5520662537. The cubic root of 244345420 is about 625.1747095580.

Adding to 244345420 its reverse (24543442), we get a palindrome (268888862).

The spelling of 244345420 in words is "two hundred forty-four million, three hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 79 85 110 158 170 187 220 316 340 374 395 748 790 827 869 935 1343 1580 1654 1738 1870 2686 3308 3476 3740 4135 4345 5372 6715 8270 8690 9097 13430 14059 14773 16540 17380 18194 26860 28118 29546 36388 45485 56236 59092 65333 70295 73865 90970 130666 140590 147730 154649 181940 261332 281180 295460 309298 326665 618596 653330 718663 773245 1110661 1306660 1437326 1546490 2221322 2874652 3092980 3593315 4442644 5553305 7186630 11106610 12217271 14373260 22213220 24434542 48869084 61086355 122172710 244345420