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13791640401654 = 234748906526247
BaseRepresentation
bin1100100010110001110111…
…0100111011011011110110
31210211110122010120200011120
43020230131310323123312
53301430234420323104
645155443033444410
72622261464111523
oct310543564733366
953743563520146
1013791640401654
114438002506525
121668ab4570706
13790713a5799b
1435973a03814a
1518db43aeacd9
hexc8b1dd3b6f6

13791640401654 has 16 divisors (see below), whose sum is σ = 28170159118848. Its totient is φ = 4499400414632.

The previous prime is 13791640401653. The next prime is 13791640401703. The reversal of 13791640401654 is 45610404619731.

It is a junction number, because it is equal to n+sod(n) for n = 13791640401597 and 13791640401606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13791640401653) 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, 24453262842 + ... + 24453263405.

It is an arithmetic number, because the mean of its divisors is an integer number (1760634944928).

Almost surely, 213791640401654 is an apocalyptic number.

13791640401654 is an abundant number, since it is smaller than the sum of its proper divisors (14378518717194).

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

13791640401654 is a wasteful number, since it uses less digits than its factorization.

13791640401654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48906526299.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 13791640401654 in words is "thirteen trillion, seven hundred ninety-one billion, six hundred forty million, four hundred one thousand, six hundred fifty-four".

Divisors: 1 2 3 6 47 94 141 282 48906526247 97813052494 146719578741 293439157482 2298606733609 4597213467218 6895820200827 13791640401654