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4668388169 = 21292192761
BaseRepresentation
bin1000101100100000…
…11111001101001001
3110001100101200122112
410112100133031021
534030101410134
62051123432105
7223454434064
oct42620371511
913040350575
104668388169
111a86202145
12aa3525635
13595243283
1432401d8db
151c4ca11ce
hex11641f349

4668388169 has 4 divisors (see below), whose sum is σ = 4670583060. Its totient is φ = 4666193280.

The previous prime is 4668388147. The next prime is 4668388189. The reversal of 4668388169 is 9618838664.

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 1644708025 + 3023680144 = 40555^2 + 54988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4668388169 is a prime.

It is a super-2 number, since 2×46683881692 = 43587696192918345122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4668388189) 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, 1094252 + ... + 1098509.

It is an arithmetic number, because the mean of its divisors is an integer number (1167645765).

Almost surely, 24668388169 is an apocalyptic number.

It is an amenable number.

4668388169 is a deficient number, since it is larger than the sum of its proper divisors (2194891).

4668388169 is a wasteful number, since it uses less digits than its factorization.

4668388169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194890.

The product of its digits is 11943936, while the sum is 59.

The square root of 4668388169 is about 68325.6040514828. The cubic root of 4668388169 is about 1671.3047722043.

The spelling of 4668388169 in words is "four billion, six hundred sixty-eight million, three hundred eighty-eight thousand, one hundred sixty-nine".

Divisors: 1 2129 2192761 4668388169