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13854913 is a prime number
BaseRepresentation
bin110100110110…
…100011000001
3222001220100221
4310312203001
512021324123
61212543041
7225523222
oct64664301
928056327
1013854913
117903446
124781a81
132b41397
141ba9249
15133a25d
hexd368c1

13854913 has 2 divisors, whose sum is σ = 13854914. Its totient is φ = 13854912.

The previous prime is 13854899. The next prime is 13854917. The reversal of 13854913 is 31945831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13454224 + 400689 = 3668^2 + 633^2 .

It is an emirp because it is prime and its reverse (31945831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13854913 is a prime.

It is a super-2 number, since 2×138549132 = 383917228475138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13854917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927456 + 6927457.

It is an arithmetic number, because the mean of its divisors is an integer number (6927457).

Almost surely, 213854913 is an apocalyptic number.

It is an amenable number.

13854913 is a deficient number, since it is larger than the sum of its proper divisors (1).

13854913 is an equidigital number, since it uses as much as digits as its factorization.

13854913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 13854913 is about 3722.2188275275. The cubic root of 13854913 is about 240.1787614942.

The spelling of 13854913 in words is "thirteen million, eight hundred fifty-four thousand, nine hundred thirteen".