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12255320352 = 2531146724851
BaseRepresentation
bin10110110100111100…
…10101100100100000
31011122002112210000210
423122132111210200
5200044330222402
65344030014120
7612461334642
oct133236254440
934562483023
1012255320352
115219899630
122460347340
13120401aa62
148438c0892
154bada606c
hex2da795920

12255320352 has 96 divisors (see below), whose sum is σ = 35171345664. Its totient is φ = 3705632000.

The previous prime is 12255320339. The next prime is 12255320369. The reversal of 12255320352 is 25302355221.

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

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, 480727 + ... + 505577.

It is an arithmetic number, because the mean of its divisors is an integer number (366368184).

Almost surely, 212255320352 is an apocalyptic number.

12255320352 is a gapful number since it is divisible by the number (12) 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 12255320352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17585672832).

12255320352 is an abundant number, since it is smaller than the sum of its proper divisors (22916025312).

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

12255320352 is a wasteful number, since it uses less digits than its factorization.

12255320352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25342 (or 25334 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 12255320352 its reverse (25302355221), we get a palindrome (37557675573).

The spelling of 12255320352 in words is "twelve billion, two hundred fifty-five million, three hundred twenty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 467 528 934 1056 1401 1868 2802 3736 5137 5604 7472 10274 11208 14944 15411 20548 22416 24851 30822 41096 44832 49702 61644 74553 82192 99404 123288 149106 164384 198808 246576 273361 298212 397616 493152 546722 596424 795232 820083 1093444 1192848 1640166 2186888 2385696 3280332 4373776 6560664 8747552 11605417 13121328 23210834 26242656 34816251 46421668 69632502 92843336 127659587 139265004 185686672 255319174 278530008 371373344 382978761 510638348 557060016 765957522 1021276696 1114120032 1531915044 2042553392 3063830088 4085106784 6127660176 12255320352