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12331004320 = 255109707053
BaseRepresentation
bin10110111101111110…
…00011000110100000
31011211100221220220201
423132333003012200
5200223214114240
65355332114544
7614400543625
oct133677030640
934740856821
1012331004320
115258592068
122481765a54
1312168c977b
1484d98234c
154c2855d9a
hex2defc31a0

12331004320 has 48 divisors (see below), whose sum is σ = 29399305320. Its totient is φ = 4887143424.

The previous prime is 12331004303. The next prime is 12331004339. The reversal of 12331004320 is 2340013321.

It can be written as a sum of positive squares in 4 ways, for example, as 9806544784 + 2524459536 = 99028^2 + 50244^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336087 + ... + 370966.

Almost surely, 212331004320 is an apocalyptic number.

12331004320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331004320 is an abundant number, since it is smaller than the sum of its proper divisors (17068301000).

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

12331004320 is a wasteful number, since it uses less digits than its factorization.

12331004320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707177 (or 707169 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12331004320 its reverse (2340013321), we get a palindrome (14671017641).

Subtracting from 12331004320 its reverse (2340013321), we obtain a palindrome (9990990999).

The spelling of 12331004320 in words is "twelve billion, three hundred thirty-one million, four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 109 160 218 436 545 872 1090 1744 2180 3488 4360 8720 17440 707053 1414106 2828212 3535265 5656424 7070530 11312848 14141060 22625696 28282120 56564240 77068777 113128480 154137554 308275108 385343885 616550216 770687770 1233100432 1541375540 2466200864 3082751080 6165502160 12331004320