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12104615144623 = 317383853116881
BaseRepresentation
bin1011000000100101001101…
…0010010010110010101111
31120212012010102221002021111
42300021103102102302233
53041310222434111443
641424441115412451
72356346435041111
oct260112322226257
946765112832244
1012104615144623
1139475a1756411
121435b57154127
1369a5ca3bca21
142dbc1b95d3b1
1515ed073e069d
hexb0253492caf

12104615144623 has 16 divisors (see below), whose sum is σ = 12188881345536. Its totient is φ = 12020713413120.

The previous prime is 12104615144581. The next prime is 12104615144707. The reversal of 12104615144623 is 32644151640121.

It is a cyclic number.

It is not a de Polignac number, because 12104615144623 - 229 = 12104078273711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104615144123) 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, 103505143 + ... + 103622023.

It is an arithmetic number, because the mean of its divisors is an integer number (761805084096).

Almost surely, 212104615144623 is an apocalyptic number.

12104615144623 is a deficient number, since it is larger than the sum of its proper divisors (84266200913).

12104615144623 is a wasteful number, since it uses less digits than its factorization.

12104615144623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118434.

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 12104615144623 its reverse (32644151640121), we get a palindrome (44748766784744).

The spelling of 12104615144623 in words is "twelve trillion, one hundred four billion, six hundred fifteen million, one hundred forty-four thousand, six hundred twenty-three".

Divisors: 1 317 383 853 116881 121411 270401 326699 37051277 44765423 99699493 103563583 14190639091 31604739281 38184905819 12104615144623