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2311430044 = 227117504643
BaseRepresentation
bin1000100111000101…
…1001111110011100
312222002100210221011
42021301121332130
514213211230134
61021205545004
7111164555050
oct21161317634
95862323834
102311430044
11a86818670
12546115164
132aab478b1
1417cda5c60
15d7dcd264
hex89c59f9c

2311430044 has 24 divisors (see below), whose sum is σ = 5043120768. Its totient is φ = 900557040.

The previous prime is 2311430021. The next prime is 2311430059. The reversal of 2311430044 is 4400341132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2311429997 and 2311430024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3752014 + ... + 3752629.

It is an arithmetic number, because the mean of its divisors is an integer number (210130032).

Almost surely, 22311430044 is an apocalyptic number.

It is an amenable number.

2311430044 is an abundant number, since it is smaller than the sum of its proper divisors (2731690724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311430044 is a wasteful number, since it uses less digits than its factorization.

2311430044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7504665 (or 7504663 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2311430044 is about 48077.3339943055. Note that the first 3 decimals coincide. The cubic root of 2311430044 is about 1322.1891368078.

Adding to 2311430044 its reverse (4400341132), we get a palindrome (6711771176).

The spelling of 2311430044 in words is "two billion, three hundred eleven million, four hundred thirty thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 7504643 15009286 30018572 52532501 82551073 105065002 165102146 210130004 330204292 577857511 1155715022 2311430044