Search a number
-
+
61345430606 = 2192516431687
BaseRepresentation
bin111001001000011110…
…001111110001001110
312212100021020202120102
4321020132033301032
52001113412234411
644103125251102
74301124361625
oct711036176116
9185307222512
1061345430606
112401a994a89
12ba80563a92
135a28410785
142d7d43c6bc
1518e0918d3b
hexe4878fc4e

61345430606 has 16 divisors (see below), whose sum is σ = 97247122560. Its totient is φ = 28942587000.

The previous prime is 61345430561. The next prime is 61345430609. The reversal of 61345430606 is 60603454316.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61345430606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61345430609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3206306 + ... + 3225381.

It is an arithmetic number, because the mean of its divisors is an integer number (6077945160).

Almost surely, 261345430606 is an apocalyptic number.

61345430606 is a deficient number, since it is larger than the sum of its proper divisors (35901691954).

61345430606 is a wasteful number, since it uses less digits than its factorization.

61345430606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431959.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 61345430606 in words is "sixty-one billion, three hundred forty-five million, four hundred thirty thousand, six hundred six".

Divisors: 1 2 19 38 251 502 4769 9538 6431687 12863374 122202053 244404106 1614353437 3228706874 30672715303 61345430606