Search a number
-
+
7857141653 is a prime number
BaseRepresentation
bin1110101000101001…
…00111011110010101
3202021120121011002102
413110110213132111
5112042412013103
63335353451445
7365464413344
oct72424473625
922246534072
107857141653
1133721738a9
121633410b85
13982a74a5a
1454771bb5b
1530ebcbe88
hex1d4527795

7857141653 has 2 divisors, whose sum is σ = 7857141654. Its totient is φ = 7857141652.

The previous prime is 7857141629. The next prime is 7857141659. The reversal of 7857141653 is 3561417587.

7857141653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7841633809 + 15507844 = 88553^2 + 3938^2 .

It is a cyclic number.

It is not a de Polignac number, because 7857141653 - 224 = 7840364437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7857141598 and 7857141607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7857141659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928570826 + 3928570827.

It is an arithmetic number, because the mean of its divisors is an integer number (3928570827).

Almost surely, 27857141653 is an apocalyptic number.

It is an amenable number.

7857141653 is a deficient number, since it is larger than the sum of its proper divisors (1).

7857141653 is an equidigital number, since it uses as much as digits as its factorization.

7857141653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 47.

The square root of 7857141653 is about 88640.5192505098. The cubic root of 7857141653 is about 1988.0235633864.

The spelling of 7857141653 in words is "seven billion, eight hundred fifty-seven million, one hundred forty-one thousand, six hundred fifty-three".