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12520115214 = 2317591186291
BaseRepresentation
bin10111010100100000…
…11100110000001110
31012022112210202021220
423222100130300032
5201120122141324
65430205304210
7622155136425
oct135220346016
935275722256
1012520115214
115345307962
122514b65066
131246b405c9
1486ab2c2bc
154d425db79
hex2ea41cc0e

12520115214 has 16 divisors (see below), whose sum is σ = 25054487040. Its totient is φ = 4170995640.

The previous prime is 12520115191. The next prime is 12520115233. The reversal of 12520115214 is 41251102521.

It is a happy number.

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, 582592 + ... + 603699.

It is an arithmetic number, because the mean of its divisors is an integer number (1565905440).

Almost surely, 212520115214 is an apocalyptic number.

12520115214 is an abundant number, since it is smaller than the sum of its proper divisors (12534371826).

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

12520115214 is a wasteful number, since it uses less digits than its factorization.

12520115214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188055.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 12520115214 its reverse (41251102521), we get a palindrome (53771217735).

The spelling of 12520115214 in words is "twelve billion, five hundred twenty million, one hundred fifteen thousand, two hundred fourteen".

Divisors: 1 2 3 6 1759 3518 5277 10554 1186291 2372582 3558873 7117746 2086685869 4173371738 6260057607 12520115214