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131444232114320 = 2452956999572929
BaseRepresentation
bin11101111000110000111110…
…110000110101000010010000
3122020101221112112112022011222
4131320300332300311002100
5114212040241410124240
61143320351400224212
736454350415136156
oct3570607660650220
9566357475468158
10131444232114320
11389782053146a4
12128aa93346b068
1358461a3c82768
142465d1306b3d6
15102e275a14eb5
hex778c3ec35090

131444232114320 has 80 divisors (see below), whose sum is σ = 316701661158000. Its totient is φ = 50675451101184.

The previous prime is 131444232114269. The next prime is 131444232114347. The reversal of 131444232114320 is 23411232444131.

It can be written as a sum of positive squares in 8 ways, for example, as 2284825726096 + 129159406388224 = 1511564^2 + 11364832^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1314442321143202 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48466385 + ... + 51106544.

It is an arithmetic number, because the mean of its divisors is an integer number (3958770764475).

Almost surely, 2131444232114320 is an apocalyptic number.

131444232114320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444232114320 is an abundant number, since it is smaller than the sum of its proper divisors (185257429043680).

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

131444232114320 is a wasteful number, since it uses less digits than its factorization.

131444232114320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99573540 (or 99573534 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 131444232114320 its reverse (23411232444131), we get a palindrome (154855464558451).

The spelling of 131444232114320 in words is "one hundred thirty-one trillion, four hundred forty-four billion, two hundred thirty-two million, one hundred fourteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 569 580 1138 1160 2276 2320 2845 4552 5690 9104 11380 16501 22760 33002 45520 66004 82505 132008 165010 264016 330020 660040 1320080 99572929 199145858 398291716 497864645 796583432 995729290 1593166864 1991458580 2887614941 3982917160 5775229882 7965834320 11550459764 14438074705 23100919528 28876149410 46201839056 56656996601 57752298820 113313993202 115504597640 226627986404 231009195280 283284983005 453255972808 566569966010 906511945616 1133139932020 1643052901429 2266279864040 3286105802858 4532559728080 6572211605716 8215264507145 13144423211432 16430529014290 26288846422864 32861058028580 65722116057160 131444232114320