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68733619201 = 135287201477
BaseRepresentation
bin100000000000011010…
…1111100110000000001
320120102011102122000001
41000000311330300001
52111231301303301
651324212000001
74652166060232
oct1000065746001
9216364378001
1068733619201
1127171377475
12113a2900001
136634c80ac0
143480767089
151bc4361c01
hex1000d7cc01

68733619201 has 4 divisors (see below), whose sum is σ = 74020820692. Its totient is φ = 63446417712.

The previous prime is 68733619193. The next prime is 68733619243. The reversal of 68733619201 is 10291633786.

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 16589440000 + 52144179201 = 128800^2 + 228351^2 .

It is a cyclic number.

It is not a de Polignac number, because 68733619201 - 23 = 68733619193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68733619291) 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, 2643600726 + ... + 2643600751.

It is an arithmetic number, because the mean of its divisors is an integer number (18505205173).

Almost surely, 268733619201 is an apocalyptic number.

It is an amenable number.

68733619201 is a deficient number, since it is larger than the sum of its proper divisors (5287201491).

68733619201 is a wasteful number, since it uses less digits than its factorization.

68733619201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287201490.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 68733619201 in words is "sixty-eight billion, seven hundred thirty-three million, six hundred nineteen thousand, two hundred one".

Divisors: 1 13 5287201477 68733619201