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53914945 = 572337653
BaseRepresentation
bin1100110110101…
…0110101000001
310202110011101211
43031222311001
5102300234240
65203330121
71223161300
oct315526501
9122404354
1053914945
1128485107
1216080941
13b229346
147236437
154aeebea
hex336ad41

53914945 has 24 divisors (see below), whose sum is σ = 75599784. Its totient is φ = 36804096.

The previous prime is 53914943. The next prime is 53914999. The reversal of 53914945 is 54941935.

53914945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 200704 + 53714241 = 448^2 + 7329^2 .

It is not a de Polignac number, because 53914945 - 21 = 53914943 is a prime.

It is a super-3 number, since 3×539149453 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53914898 and 53914907.

It is not an unprimeable number, because it can be changed into a prime (53914943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82239 + ... + 82891.

It is an arithmetic number, because the mean of its divisors is an integer number (3149991).

Almost surely, 253914945 is an apocalyptic number.

It is an amenable number.

53914945 is a deficient number, since it is larger than the sum of its proper divisors (21684839).

53914945 is a wasteful number, since it uses less digits than its factorization.

53914945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1002 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 53914945 is about 7342.6796879613. The cubic root of 53914945 is about 377.7777614539. Note that the first 4 decimals are identical.

The spelling of 53914945 in words is "fifty-three million, nine hundred fourteen thousand, nine hundred forty-five".

Divisors: 1 5 7 35 49 245 337 653 1685 2359 3265 4571 11795 16513 22855 31997 82565 159985 220061 1100305 1540427 7702135 10782989 53914945