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242450000 = 245513373
BaseRepresentation
bin11100111001101…
…11111001010000
3121220012201212122
432130313321100
5444031400000
640020313412
76002535212
oct1634677120
9556181778
10242450000
11114947301
1269242868
133b2cb050
14242b25b2
1516442085
hexe737e50

242450000 has 120 divisors (see below), whose sum is σ = 634006296. Its totient is φ = 89280000.

The previous prime is 242449997. The next prime is 242450003. The reversal of 242450000 is 54242.

It is an interprime number because it is at equal distance from previous prime (242449997) and next prime (242450003).

It can be written as a sum of positive squares in 12 ways, for example, as 238023184 + 4426816 = 15428^2 + 2104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242450003) 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, 649814 + ... + 650186.

Almost surely, 2242450000 is an apocalyptic number.

242450000 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 242450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317003148).

242450000 is an abundant number, since it is smaller than the sum of its proper divisors (391556296).

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

242450000 is an equidigital number, since it uses as much as digits as its factorization.

242450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 242450000 is about 15570.8060163885. The cubic root of 242450000 is about 623.5539904034.

The spelling of 242450000 in words is "two hundred forty-two million, four hundred fifty thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 125 130 200 208 250 260 325 373 400 500 520 625 650 746 1000 1040 1250 1300 1492 1625 1865 2000 2500 2600 2984 3125 3250 3730 4849 5000 5200 5968 6250 6500 7460 8125 9325 9698 10000 12500 13000 14920 16250 18650 19396 24245 25000 26000 29840 32500 37300 38792 40625 46625 48490 50000 65000 74600 77584 81250 93250 96980 121225 130000 149200 162500 186500 193960 233125 242450 325000 373000 387920 466250 484900 606125 650000 746000 932500 969800 1165625 1212250 1865000 1939600 2331250 2424500 3030625 3730000 4662500 4849000 6061250 9325000 9698000 12122500 15153125 18650000 24245000 30306250 48490000 60612500 121225000 242450000