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13012156441 = 191494596311
BaseRepresentation
bin11000001111001010…
…11100000000011001
31020120211200000222001
430013211130000121
5203122103001231
65551103401001
7640311335104
oct140745340031
936524600861
1013012156441
1155780287a9
1226318b3161
1312c4a69c6b
148b621173b
15512553b61
hex30795c019

13012156441 has 8 divisors (see below), whose sum is σ = 13788936000. Its totient is φ = 12244569840.

The previous prime is 13012156433. The next prime is 13012156453. The reversal of 13012156441 is 14465121031.

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

It is a cyclic number.

It is not a de Polignac number, because 13012156441 - 23 = 13012156433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012156141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295325 + ... + 2300986.

It is an arithmetic number, because the mean of its divisors is an integer number (1723617000).

Almost surely, 213012156441 is an apocalyptic number.

It is an amenable number.

13012156441 is a deficient number, since it is larger than the sum of its proper divisors (776779559).

13012156441 is a wasteful number, since it uses less digits than its factorization.

13012156441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596479.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 13012156441 its reverse (14465121031), we get a palindrome (27477277472).

The spelling of 13012156441 in words is "thirteen billion, twelve million, one hundred fifty-six thousand, four hundred forty-one".

Divisors: 1 19 149 2831 4596311 87329909 684850339 13012156441