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2648000240 = 245175961541
BaseRepresentation
bin1001110111010101…
…0100011011110000
320211112200100102222
42131311110123300
520410342001430
61114431500212
7122422426214
oct23565243360
96745610388
102648000240
1111397aa856
1261a987668
133327ab062
141b1978944
151077129e5
hex9dd546f0

2648000240 has 160 divisors (see below), whose sum is σ = 6750371520. Its totient is φ = 962150400.

The previous prime is 2648000239. The next prime is 2648000279. The reversal of 2648000240 is 420008462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4894370 + ... + 4894910.

It is an arithmetic number, because the mean of its divisors is an integer number (42189822).

Almost surely, 22648000240 is an apocalyptic number.

2648000240 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 2648000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3375185760).

2648000240 is an abundant number, since it is smaller than the sum of its proper divisors (4102371280).

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

2648000240 is a wasteful number, since it uses less digits than its factorization.

2648000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2648000240 is about 51458.7236530406. The cubic root of 2648000240 is about 1383.4793251188.

The spelling of 2648000240 in words is "two billion, six hundred forty-eight million, two hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 17 20 34 40 59 61 68 80 85 118 122 136 170 236 244 272 295 305 340 472 488 541 590 610 680 944 976 1003 1037 1082 1180 1220 1360 2006 2074 2164 2360 2440 2705 3599 4012 4148 4328 4720 4880 5015 5185 5410 7198 8024 8296 8656 9197 10030 10370 10820 14396 16048 16592 17995 18394 20060 20740 21640 28792 31919 33001 35990 36788 40120 41480 43280 45985 57584 61183 63838 66002 71980 73576 80240 82960 91970 122366 127676 132004 143960 147152 159595 165005 183940 244732 255352 264008 287920 305915 319190 330010 367880 489464 510704 528016 542623 561017 611830 638380 660020 735760 978928 1085246 1122034 1223660 1276760 1320040 1947059 2170492 2244068 2447320 2553520 2640080 2713115 2805085 3894118 4340984 4488136 4894640 5426230 5610170 7788236 8681968 8976272 9735295 10852460 11220340 15576472 19470590 21704920 22440680 31152944 33100003 38941180 43409840 44881360 66200006 77882360 132400012 155764720 165500015 264800024 331000030 529600048 662000060 1324000120 2648000240