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54901309 is a prime number
BaseRepresentation
bin1101000101101…
…1101000111101
310211022021102211
43101123220331
5103023320214
65240420421
71234440061
oct321335075
9124267384
1054901309
1128a99191
1216477711
13b4b32a8
147411aa1
154c470c4
hex345ba3d

54901309 has 2 divisors, whose sum is σ = 54901310. Its totient is φ = 54901308.

The previous prime is 54901307. The next prime is 54901333. The reversal of 54901309 is 90310945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 10745284 = 6645^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 54901309 - 21 = 54901307 is a prime.

Together with 54901307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54901307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27450654 + 27450655.

It is an arithmetic number, because the mean of its divisors is an integer number (27450655).

Almost surely, 254901309 is an apocalyptic number.

It is an amenable number.

54901309 is a deficient number, since it is larger than the sum of its proper divisors (1).

54901309 is an equidigital number, since it uses as much as digits as its factorization.

54901309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 54901309 is about 7409.5417537119. The cubic root of 54901309 is about 380.0676449290.

The spelling of 54901309 in words is "fifty-four million, nine hundred one thousand, three hundred nine".