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1312418585421 = 322364382711923
BaseRepresentation
bin10011000110010010001…
…111100101101101001101
311122110120201002221211100
4103012102033211231031
5133000313124213141
62442530005013313
7163550645624646
oct23062217455515
94573521087740
101312418585421
11466659093229
121924323b4239
13969b6ba9b38
1447742a086cd
15242142cb0b6
hex131923e5b4d

1312418585421 has 48 divisors (see below), whose sum is σ = 1983776610816. Its totient is φ = 834522641568.

The previous prime is 1312418585419. The next prime is 1312418585447. The reversal of 1312418585421 is 1245858142131.

1312418585421 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 41 + 8 + 585 + 4 + 21 = 666.

It is not a de Polignac number, because 1312418585421 - 21 = 1312418585419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312418595421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110068566 + ... + 110080488.

It is an arithmetic number, because the mean of its divisors is an integer number (41328679392).

Almost surely, 21312418585421 is an apocalyptic number.

It is an amenable number.

1312418585421 is a deficient number, since it is larger than the sum of its proper divisors (671358025395).

1312418585421 is a wasteful number, since it uses less digits than its factorization.

1312418585421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13422 (or 13419 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The spelling of 1312418585421 in words is "one trillion, three hundred twelve billion, four hundred eighteen million, five hundred eighty-five thousand, four hundred twenty-one".

Divisors: 1 3 9 23 69 207 643 827 1929 2481 5787 7443 11923 14789 19021 35769 44367 57063 107307 133101 171189 274229 531761 822687 1595283 2468061 4785849 7666489 9860321 12230503 22999467 29580963 36691509 68998401 88742889 110074527 176329247 226787383 528987741 680362149 1586963223 2041086447 6340186403 19020559209 57061677627 145824287269 437472861807 1312418585421