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13241255520 = 2535125921911
BaseRepresentation
bin11000101010011110…
…11000011001100000
31021011210202110211010
430111033120121200
5204104230134040
610025530020520
7646062546333
oct142517303140
937153673733
1013241255520
115685386289
122696577740
13133037214c
148d880a61a
15527709e80
hex3153d8660

13241255520 has 96 divisors (see below), whose sum is σ = 41744989440. Its totient is φ = 3528035840.

The previous prime is 13241255519. The next prime is 13241255569. The reversal of 13241255520 is 2555214231.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 593365 + ... + 615275.

It is an arithmetic number, because the mean of its divisors is an integer number (434843640).

Almost surely, 213241255520 is an apocalyptic number.

13241255520 is a gapful number since it is divisible by the number (10) 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 13241255520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20872494720).

13241255520 is an abundant number, since it is smaller than the sum of its proper divisors (28503733920).

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

13241255520 is a wasteful number, since it uses less digits than its factorization.

13241255520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23188 (or 23180 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13241255520 its reverse (2555214231), we get a palindrome (15796469751).

The spelling of 13241255520 in words is "thirteen billion, two hundred forty-one million, two hundred fifty-five thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 1259 2518 3777 5036 6295 7554 10072 12590 15108 18885 20144 21911 25180 30216 37770 40288 43822 50360 60432 65733 75540 87644 100720 109555 120864 131466 151080 175288 201440 219110 262932 302160 328665 350576 438220 525864 604320 657330 701152 876440 1051728 1314660 1752880 2103456 2629320 3505760 5258640 10517280 27585949 55171898 82757847 110343796 137929745 165515694 220687592 275859490 331031388 413789235 441375184 551718980 662062776 827578470 882750368 1103437960 1324125552 1655156940 2206875920 2648251104 3310313880 4413751840 6620627760 13241255520