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49307237720 = 23513535413307
BaseRepresentation
bin101101111010111100…
…001011110101011000
311201021022021012102122
4231322330023311120
51301440123101340
634352413120412
73363610414436
oct557274136530
9151238235378
1049307237720
1119a02717544
129680a89108
13485a395b10
14255a71bd56
151438b51db5
hexb7af0bd58

49307237720 has 128 divisors (see below), whose sum is σ = 121991365440. Its totient is φ = 17823836160.

The previous prime is 49307237719. The next prime is 49307237729. The reversal of 49307237720 is 2773270394.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49307237729) 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, 14908307 + ... + 14911613.

Almost surely, 249307237720 is an apocalyptic number.

49307237720 is a gapful number since it is divisible by the number (40) 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 49307237720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60995682720).

49307237720 is an abundant number, since it is smaller than the sum of its proper divisors (72684127720).

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

49307237720 is a wasteful number, since it uses less digits than its factorization.

49307237720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 49307237720 in words is "forty-nine billion, three hundred seven million, two hundred thirty-seven thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 53 65 104 106 130 212 260 265 424 520 530 541 689 1060 1082 1378 2120 2164 2705 2756 3307 3445 4328 5410 5512 6614 6890 7033 10820 13228 13780 14066 16535 21640 26456 27560 28132 28673 33070 35165 42991 56264 57346 66140 70330 85982 114692 132280 140660 143365 171964 175271 214955 229384 281320 286730 343928 350542 372749 429910 573460 701084 745498 859820 876355 1146920 1402168 1490996 1719640 1752710 1789087 1863745 2278523 2981992 3505420 3578174 3727490 4557046 7010840 7156348 7454980 8945435 9114092 11392615 14312696 14909960 17890870 18228184 22785230 23258131 35781740 45570460 46516262 71563480 91140920 93032524 94821611 116290655 186065048 189643222 232581310 379286444 465162620 474108055 758572888 930325240 948216110 1232680943 1896432220 2465361886 3792864440 4930723772 6163404715 9861447544 12326809430 24653618860 49307237720