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13031031388353 = 311613644175757
BaseRepresentation
bin1011110110100000010111…
…1111110011100011000001
31201010202100222112101111020
42331220011333303203001
53202000023013411403
643414212334540053
72513314051141356
oct275500577634301
951122328471436
1013031031388353
11417447a5560a0
121565602067629
13736a8992a584
143309c342c62d
15178e78ae2453
hexbda05ff38c1

13031031388353 has 16 divisors (see below), whose sum is σ = 18985147939776. Its totient is φ = 7884711253440.

The previous prime is 13031031388253. The next prime is 13031031388393. The reversal of 13031031388353 is 35388313013031.

It is not a de Polignac number, because 13031031388353 - 213 = 13031031380161 is a prime.

It is a super-2 number, since 2×130310313883532 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13031031388393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322067650 + ... + 322108107.

It is an arithmetic number, because the mean of its divisors is an integer number (1186571746236).

Almost surely, 213031031388353 is an apocalyptic number.

It is an amenable number.

13031031388353 is a deficient number, since it is larger than the sum of its proper divisors (5954116551423).

13031031388353 is a wasteful number, since it uses less digits than its factorization.

13031031388353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644176384.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 13031031388353 in words is "thirteen trillion, thirty-one billion, thirty-one million, three hundred eighty-eight thousand, three hundred fifty-three".

Divisors: 1 3 11 33 613 1839 6743 20229 644175757 1932527271 7085933327 21257799981 394879739041 1184639217123 4343677129451 13031031388353