Search a number
-
+
64842296810 = 256484229681
BaseRepresentation
bin111100011000111001…
…101110110111101010
320012100222012222012112
4330120321232313222
52030244111444220
645442123242322
74453565300054
oct743071566752
9205328188175
1064842296810
1125554871355
12106976793a2
136164a20885
1431d1a228d4
151a479075c5
hexf18e6edea

64842296810 has 8 divisors (see below), whose sum is σ = 116716134276. Its totient is φ = 25936918720.

The previous prime is 64842296803. The next prime is 64842296819. The reversal of 64842296810 is 1869224846.

It can be written as a sum of positive squares in 2 ways, for example, as 57539056129 + 7303240681 = 239873^2 + 85459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×648422968102 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64842296819) 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, 3242114831 + ... + 3242114850.

Almost surely, 264842296810 is an apocalyptic number.

64842296810 is a deficient number, since it is larger than the sum of its proper divisors (51873837466).

64842296810 is a wasteful number, since it uses less digits than its factorization.

64842296810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484229688.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 64842296810 in words is "sixty-four billion, eight hundred forty-two million, two hundred ninety-six thousand, eight hundred ten".

Divisors: 1 2 5 10 6484229681 12968459362 32421148405 64842296810