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12512636806830 = 2351935972154413
BaseRepresentation
bin1011011000010101001101…
…0001011010011010101110
31122022012022011200010010120
42312011103101122122232
53120001340010304310
642340120451545410
72431002542663316
oct266052321323256
948265264603116
1012512636806830
113a94641301306
1214a10488bb266
136c9c238b7044
14313887228446
1516a738162b70
hexb615345a6ae

12512636806830 has 32 divisors (see below), whose sum is σ = 30030497393184. Its totient is φ = 3336684364416.

The previous prime is 12512636806807. The next prime is 12512636806849. The reversal of 12512636806830 is 3860863621521.

12512636806830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4730704 + ... + 6885116.

It is an arithmetic number, because the mean of its divisors is an integer number (938453043537).

Almost surely, 212512636806830 is an apocalyptic number.

12512636806830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512636806830 is an abundant number, since it is smaller than the sum of its proper divisors (17517860586354).

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

12512636806830 is a wasteful number, since it uses less digits than its factorization.

12512636806830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348020.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 12512636806830 in words is "twelve trillion, five hundred twelve billion, six hundred thirty-six million, eight hundred six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 193597 387194 580791 967985 1161582 1935970 2154413 2903955 4308826 5807910 6463239 10772065 12926478 21544130 32316195 64632390 417087893561 834175787122 1251263680683 2085439467805 2502527361366 4170878935610 6256318403415 12512636806830