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65054949 = 321684983
BaseRepresentation
bin1111100000101…
…0100011100101
311112102010121120
43320022203211
5113123224244
610242204153
71416646401
oct370124345
9145363546
1065054949
11337a3823
1219953659
1310629a6b
1488d6101
155aa0819
hex3e0a8e5

65054949 has 4 divisors (see below), whose sum is σ = 86739936. Its totient is φ = 43369964.

The previous prime is 65054947. The next prime is 65054953. The reversal of 65054949 is 94945056.

It is a happy number.

65054949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65054949 - 21 = 65054947 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 65054949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65054947) 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 3 ways as a sum of consecutive naturals, for example, 10842489 + ... + 10842494.

It is an arithmetic number, because the mean of its divisors is an integer number (21684984).

Almost surely, 265054949 is an apocalyptic number.

It is an amenable number.

65054949 is a deficient number, since it is larger than the sum of its proper divisors (21684987).

65054949 is a wasteful number, since it uses less digits than its factorization.

65054949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21684986.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 65054949 is about 8065.6648207076. The cubic root of 65054949 is about 402.1858438752.

The spelling of 65054949 in words is "sixty-five million, fifty-four thousand, nine hundred forty-nine".

Divisors: 1 3 21684983 65054949