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66013045301 = 79430435043
BaseRepresentation
bin111101011110101011…
…110010001000110101
320022101120012011012202
4331132223302020311
52040143314422201
650154224354245
74524602425010
oct753653621065
9208346164182
1066013045301
1125aa5708a95
1210963775985
1362c0442968
1432a32da377
151ab55b5c6b
hexf5eaf2235

66013045301 has 4 divisors (see below), whose sum is σ = 75443480352. Its totient is φ = 56582610252.

The previous prime is 66013045279. The next prime is 66013045337. The reversal of 66013045301 is 10354031066.

It is a happy number.

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 not a de Polignac number, because 66013045301 - 218 = 66012783157 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 (66013045001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4715217515 + ... + 4715217528.

It is an arithmetic number, because the mean of its divisors is an integer number (18860870088).

Almost surely, 266013045301 is an apocalyptic number.

It is an amenable number.

66013045301 is a deficient number, since it is larger than the sum of its proper divisors (9430435051).

66013045301 is an equidigital number, since it uses as much as digits as its factorization.

66013045301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430435050.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 66013045301 its reverse (10354031066), we get a palindrome (76367076367).

The spelling of 66013045301 in words is "sixty-six billion, thirteen million, forty-five thousand, three hundred one".

Divisors: 1 7 9430435043 66013045301