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2042800240 = 2451317227509
BaseRepresentation
bin111100111000010…
…1010100001110000
312021100220000010011
41321300222201300
513140424101430
6534412144304
7101423341555
oct17160524160
95240800104
102042800240
11959120068
12490168094
132672b1650
1415543aa2c
15be51922a
hex79c2a870

2042800240 has 160 divisors (see below), whose sum is σ = 5450276160. Its totient is φ = 705380352.

The previous prime is 2042800217. The next prime is 2042800241. The reversal of 2042800240 is 420082402.

It is a super-3 number, since 3×20428002403 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042800241) 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, 4013106 + ... + 4013614.

It is an arithmetic number, because the mean of its divisors is an integer number (34064226).

Almost surely, 22042800240 is an apocalyptic number.

2042800240 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 2042800240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2725138080).

2042800240 is an abundant number, since it is smaller than the sum of its proper divisors (3407475920).

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

2042800240 is a wasteful number, since it uses less digits than its factorization.

2042800240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2042800240 is about 45197.3477097938. The cubic root of 2042800240 is about 1268.8451775202.

Adding to 2042800240 its reverse (420082402), we get a palindrome (2462882642).

The spelling of 2042800240 in words is "two billion, forty-two million, eight hundred thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 34 40 52 65 68 80 85 104 130 136 170 208 221 227 260 272 340 442 454 509 520 680 884 908 1018 1040 1105 1135 1360 1768 1816 2036 2210 2270 2545 2951 3536 3632 3859 4072 4420 4540 5090 5902 6617 7718 8144 8653 8840 9080 10180 11804 13234 14755 15436 17306 17680 18160 19295 20360 23608 26468 29510 30872 33085 34612 38590 40720 43265 47216 50167 52936 59020 61744 66170 69224 77180 86530 100334 105872 112489 115543 118040 132340 138448 154360 173060 200668 224978 231086 236080 250835 264680 308720 346120 401336 449956 462172 501670 529360 562445 577715 692240 802672 899912 924344 1003340 1124890 1155430 1502059 1799824 1848688 1964231 2006680 2249780 2310860 3004118 3928462 4013360 4499560 4621720 6008236 7510295 7856924 8999120 9243440 9821155 12016472 15020590 15713848 19642310 24032944 25535003 30041180 31427696 39284620 51070006 60082360 78569240 102140012 120164720 127675015 157138480 204280024 255350030 408560048 510700060 1021400120 2042800240