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151515151515150 = 23522394649909091
BaseRepresentation
bin100010011100110101011110…
…110010001011111000001110
3201212110201002102100122112220
4202130311132302023320032
5124324411012241441100
61254125033311240210
743625415462141453
oct4234653662137016
9655421072318486
10151515151515150
11443062400471a5
1214bb0799819066
136670a8200aca7
14295b53006b82a
15127b3cba6baa0
hex89cd5ec8be0e

151515151515150 has 96 divisors (see below), whose sum is σ = 377411361984000. Its totient is φ = 40226287046400.

The previous prime is 151515151515137. The next prime is 151515151515151. The reversal of 151515151515150 is 51515151515151.

It is a super-2 number, since 2×1515151515151502 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151515151515151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166212105 + ... + 167121195.

It is an arithmetic number, because the mean of its divisors is an integer number (3931368354000).

Almost surely, 2151515151515150 is an apocalyptic number.

151515151515150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 151515151515150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188705680992000).

151515151515150 is an abundant number, since it is smaller than the sum of its proper divisors (225896210468850).

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

151515151515150 is a wasteful number, since it uses less digits than its factorization.

151515151515150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913994 (or 913989 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 42.

Subtracting from 151515151515150 its reverse (51515151515151), we obtain a palindrome (99999999999999).

The spelling of 151515151515150 in words is "one hundred fifty-one trillion, five hundred fifteen billion, one hundred fifty-one million, five hundred fifteen thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 239 478 717 1195 1434 2390 3585 4649 5975 7170 9298 11950 13947 17925 23245 27894 35850 46490 69735 116225 139470 232450 348675 697350 909091 1111111 1818182 2222222 2727273 3333333 4545455 5454546 5555555 6666666 9090910 11111110 13636365 16666665 22727275 27272730 27777775 33333330 45454550 55555550 68181825 83333325 136363650 166666650 217272749 434545498 651818247 1086363745 1303636494 2172727490 3259091235 4226364059 5431818725 6518182470 8452728118 10863637450 12679092177 16295456175 21131820295 25358184354 32590912350 42263640590 63395460885 105659101475 126790921770 211318202950 316977304425 633954608850 1010101010101 2020202020202 3030303030303 5050505050505 6060606060606 10101010101010 15151515151515 25252525252525 30303030303030 50505050505050 75757575757575 151515151515150