Search a number
-
+
7138578846125 = 53113505386113
BaseRepresentation
bin110011111100001010001…
…1101001101000110101101
3221021102220211111202111202
41213320110131031012231
51413424302141034000
623103230131055245
71334513432010566
oct147702435150655
927242824452452
107138578846125
1123024aa724551
12973607741525
133ca21b94346c
141a971ac0716d
15c5a5679cdd5
hex67e1474d1ad

7138578846125 has 16 divisors (see below), whose sum is σ = 8987786651376. Its totient is φ = 5660324454400.

The previous prime is 7138578846079. The next prime is 7138578846137. The reversal of 7138578846125 is 5216488758317.

It can be written as a sum of positive squares in 8 ways, for example, as 4220156707204 + 2918422138921 = 2054302^2 + 1708339^2 .

It is not a de Polignac number, because 7138578846125 - 214 = 7138578829741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252678932 + ... + 252707181.

It is an arithmetic number, because the mean of its divisors is an integer number (561736665711).

Almost surely, 27138578846125 is an apocalyptic number.

It is an amenable number.

7138578846125 is a deficient number, since it is larger than the sum of its proper divisors (1849207805251).

7138578846125 is a wasteful number, since it uses less digits than its factorization.

7138578846125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505386241 (or 505386231 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 65.

The spelling of 7138578846125 in words is "seven trillion, one hundred thirty-eight billion, five hundred seventy-eight million, eight hundred forty-six thousand, one hundred twenty-five".

Divisors: 1 5 25 113 125 565 2825 14125 505386113 2526930565 12634652825 57108630769 63173264125 285543153845 1427715769225 7138578846125