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2255407169 = 2977772661
BaseRepresentation
bin1000011001101110…
…1100100001000001
312211011221112222212
42012123230201001
514104341012134
61011445111505
7106614434051
oct20633544101
95734845885
102255407169
11a58133874
1252b3b8595
1329c360c72
14175781561
15d3013bce
hex866ec841

2255407169 has 4 divisors (see below), whose sum is σ = 2333179860. Its totient is φ = 2177634480.

The previous prime is 2255407159. The next prime is 2255407243. The reversal of 2255407169 is 9617045522.

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 1156816144 + 1098591025 = 34012^2 + 33145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255407169 - 216 = 2255341633 is a prime.

It is a super-2 number, since 2×22554071692 = 10173722995953189122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255407109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38886302 + ... + 38886359.

It is an arithmetic number, because the mean of its divisors is an integer number (583294965).

Almost surely, 22255407169 is an apocalyptic number.

2255407169 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2255407169 is a deficient number, since it is larger than the sum of its proper divisors (77772691).

2255407169 is an equidigital number, since it uses as much as digits as its factorization.

2255407169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77772690.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2255407169 is about 47491.1272660483. The cubic root of 2255407169 is about 1311.4195456283.

The spelling of 2255407169 in words is "two billion, two hundred fifty-five million, four hundred seven thousand, one hundred sixty-nine".

Divisors: 1 29 77772661 2255407169