Search a number
-
+
2013154469 is a prime number
BaseRepresentation
bin111011111111110…
…0100110010100101
312012022002211202122
41313333210302211
513110331420334
6531432515325
7100613350004
oct16777446245
95168084678
102013154469
11943411827
1248224bb45
13261101981
14151520c3b
15bbb1032e
hex77fe4ca5

2013154469 has 2 divisors, whose sum is σ = 2013154470. Its totient is φ = 2013154468.

The previous prime is 2013154417. The next prime is 2013154471. The reversal of 2013154469 is 9644513102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1450848100 + 562306369 = 38090^2 + 23713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2013154469 is a prime.

It is a super-2 number, since 2×20131544692 = 8105581832109343922, which contains 22 as substring.

Together with 2013154471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013154369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006577234 + 1006577235.

It is an arithmetic number, because the mean of its divisors is an integer number (1006577235).

Almost surely, 22013154469 is an apocalyptic number.

It is an amenable number.

2013154469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013154469 is an equidigital number, since it uses as much as digits as its factorization.

2013154469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2013154469 is about 44868.1899456619. The cubic root of 2013154469 is about 1262.6772813036.

The spelling of 2013154469 in words is "two billion, thirteen million, one hundred fifty-four thousand, four hundred sixty-nine".