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12520400330335 = 53139179770637
BaseRepresentation
bin1011011000110010001000…
…0000111001111001011111
31122022221100020002222021011
42312030202000321321133
53120113234441032320
642343443103120051
72431366122564532
oct266144200717137
948287306088234
1012520400330335
113a97965642437
1214a26548a3027
136ca890141031
14313dc2336a19
1516aa3e9eb05a
hexb6322039e5f

12520400330335 has 8 divisors (see below), whose sum is σ = 15024959208576. Its totient is φ = 10016001056160.

The previous prime is 12520400330327. The next prime is 12520400330357. The reversal of 12520400330335 is 53303300402521.

12520400330335 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12520400330335 - 23 = 12520400330327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12520400330297 and 12520400330306.

It is a congruent number.

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, 39728364 + ... + 40042273.

It is an arithmetic number, because the mean of its divisors is an integer number (1878119901072).

Almost surely, 212520400330335 is an apocalyptic number.

12520400330335 is a deficient number, since it is larger than the sum of its proper divisors (2504558878241).

12520400330335 is an equidigital number, since it uses as much as digits as its factorization.

12520400330335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79802033.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 12520400330335 its reverse (53303300402521), we get a palindrome (65823700732856).

The spelling of 12520400330335 in words is "twelve trillion, five hundred twenty billion, four hundred million, three hundred thirty thousand, three hundred thirty-five".

Divisors: 1 5 31391 156955 79770637 398853185 2504080066067 12520400330335