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7152420642548 = 229718434073821
BaseRepresentation
bin110100000010100110101…
…1111011101111011110100
3221022202122111021212120112
41220011031133131323310
51414141124141030143
623113435432522152
71335513436231316
oct150051537357364
927282574255515
107152420642548
112308362a98025
1297622b250358
133cb61654044c
141aa27129b7b6
15c60b6a80e18
hex6814d7ddef4

7152420642548 has 12 divisors (see below), whose sum is σ = 12645774641892. Its totient is φ = 3539342173440.

The previous prime is 7152420642511. The next prime is 7152420642553. The reversal of 7152420642548 is 8452460242517.

It can be written as a sum of positive squares in 2 ways, for example, as 1104962573584 + 6047458068964 = 1051172^2 + 2459158^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7152420642496 and 7152420642505.

It is a congruent number.

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, 9217036523 + ... + 9217037298.

It is an arithmetic number, because the mean of its divisors is an integer number (1053814553491).

Almost surely, 27152420642548 is an apocalyptic number.

It is an amenable number.

7152420642548 is a deficient number, since it is larger than the sum of its proper divisors (5493353999344).

7152420642548 is a wasteful number, since it uses less digits than its factorization.

7152420642548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18434073922 (or 18434073920 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 7152420642548 in words is "seven trillion, one hundred fifty-two billion, four hundred twenty million, six hundred forty-two thousand, five hundred forty-eight".

Divisors: 1 2 4 97 194 388 18434073821 36868147642 73736295284 1788105160637 3576210321274 7152420642548