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13705102040 = 2357219368021
BaseRepresentation
bin11001100001110001…
…10100001011011000
31022101010120022121212
430300320310023120
5211032001231130
610143535522252
7663424305500
oct146070641330
938333508555
1013705102040
1158a319a013
1227a5989388
1313a54a9446
14940270a00
155532d0e95
hex330e342d8

13705102040 has 96 divisors (see below), whose sum is σ = 37759057200. Its totient is φ = 4451569920.

The previous prime is 13705102027. The next prime is 13705102049. The reversal of 13705102040 is 4020150731.

It is a junction number, because it is equal to n+sod(n) for n = 13705101997 and 13705102015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705102049) 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, 146771 + ... + 221250.

Almost surely, 213705102040 is an apocalyptic number.

13705102040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13705102040 is an abundant number, since it is smaller than the sum of its proper divisors (24053955160).

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

13705102040 is a wasteful number, since it uses less digits than its factorization.

13705102040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368065 (or 368054 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 13705102040 its reverse (4020150731), we get a palindrome (17725252771).

The spelling of 13705102040 in words is "thirteen billion, seven hundred five million, one hundred two thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 19 20 28 35 38 40 49 56 70 76 95 98 133 140 152 190 196 245 266 280 380 392 490 532 665 760 931 980 1064 1330 1862 1960 2660 3724 4655 5320 7448 9310 18620 37240 368021 736042 1472084 1840105 2576147 2944168 3680210 5152294 6992399 7360420 10304588 12880735 13984798 14720840 18033029 20609176 25761470 27969596 34961995 36066058 48946793 51522940 55939192 69923990 72132116 90165145 97893586 103045880 139847980 144264232 180330290 195787172 244733965 279695960 342627551 360660580 391574344 489467930 685255102 721321160 978935860 1370510204 1713137755 1957871720 2741020408 3426275510 6852551020 13705102040