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13043411220 = 22357199156059
BaseRepresentation
bin11000010010111001…
…01010100100010100
31020200000110221110110
430021130222210110
5203203103124340
65554141323020
7641141110650
oct141134524424
936600427413
1013043411220
1155937359a4
122640266470
1312cb391108
148ba429a60
15515179680
hex30972a914

13043411220 has 96 divisors (see below), whose sum is σ = 41948928000. Its totient is φ = 2966350464.

The previous prime is 13043411191. The next prime is 13043411233. The reversal of 13043411220 is 2211434031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5551 + ... + 161609.

It is an arithmetic number, because the mean of its divisors is an integer number (436968000).

Almost surely, 213043411220 is an apocalyptic number.

13043411220 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 13043411220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20974464000).

13043411220 is an abundant number, since it is smaller than the sum of its proper divisors (28905516780).

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

13043411220 is a wasteful number, since it uses less digits than its factorization.

13043411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156277 (or 156275 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13043411220 its reverse (2211434031), we get a palindrome (15254845251).

The spelling of 13043411220 in words is "thirteen billion, forty-three million, four hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 199 210 398 420 597 796 995 1194 1393 1990 2388 2786 2985 3980 4179 5572 5970 6965 8358 11940 13930 16716 20895 27860 41790 83580 156059 312118 468177 624236 780295 936354 1092413 1560590 1872708 2184826 2340885 3121180 3277239 4369652 4681770 5462065 6554478 9363540 10924130 13108956 16386195 21848260 31055741 32772390 62111482 65544780 93167223 124222964 155278705 186334446 217390187 310557410 372668892 434780374 465836115 621114820 652170561 869560748 931672230 1086950935 1304341122 1863344460 2173901870 2608682244 3260852805 4347803740 6521705610 13043411220