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1520054320012 = 221920000714737
BaseRepresentation
bin10110000111101010010…
…011000011101110001100
312101022112012101011000121
4112013222103003232030
5144401032401220022
63122145303234324
7214551235351564
oct26075223035614
95338465334017
101520054320012
11536719043888
1220671b1489a4
13b045712ca57
14537dcc51da4
1529817c952c7
hex161ea4c3b8c

1520054320012 has 12 divisors (see below), whose sum is σ = 2800100063320. Its totient is φ = 720025730496.

The previous prime is 1520054320009. The next prime is 1520054320027. The reversal of 1520054320012 is 2100234500251.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10000357293 + ... + 10000357444.

Almost surely, 21520054320012 is an apocalyptic number.

It is an amenable number.

1520054320012 is a deficient number, since it is larger than the sum of its proper divisors (1280045743308).

1520054320012 is a wasteful number, since it uses less digits than its factorization.

1520054320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000714760 (or 20000714758 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1520054320012 its reverse (2100234500251), we get a palindrome (3620288820263).

The spelling of 1520054320012 in words is "one trillion, five hundred twenty billion, fifty-four million, three hundred twenty thousand, twelve".

Divisors: 1 2 4 19 38 76 20000714737 40001429474 80002858948 380013580003 760027160006 1520054320012