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65361157 = 292253833
BaseRepresentation
bin1111100101010…
…1010100000101
311112222200122121
43321111110011
5113213024112
610252525541
71422363211
oct371252405
9145880577
1065361157
1133992894
1219a808b1
1310706254
148975941
155b11407
hex3e55505

65361157 has 4 divisors (see below), whose sum is σ = 67615020. Its totient is φ = 63107296.

The previous prime is 65361151. The next prime is 65361167. The reversal of 65361157 is 75116356.

65361157 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.

It can be written as a sum of positive squares in 2 ways, for example, as 12348196 + 53012961 = 3514^2 + 7281^2 .

It is a cyclic number.

It is not a de Polignac number, because 65361157 - 27 = 65361029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65361151) 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, 1126888 + ... + 1126945.

It is an arithmetic number, because the mean of its divisors is an integer number (16903755).

Almost surely, 265361157 is an apocalyptic number.

It is an amenable number.

65361157 is a deficient number, since it is larger than the sum of its proper divisors (2253863).

65361157 is a wasteful number, since it uses less digits than its factorization.

65361157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253862.

The product of its digits is 18900, while the sum is 34.

The square root of 65361157 is about 8084.6247284583. The cubic root of 65361157 is about 402.8158743633.

The spelling of 65361157 in words is "sixty-five million, three hundred sixty-one thousand, one hundred fifty-seven".

Divisors: 1 29 2253833 65361157