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4739090909 = 72790112241
BaseRepresentation
bin1000110100111100…
…01100100111011101
3110020021102202120112
410122132030213131
534201201402114
62102131055405
7225303415400
oct43236144735
913207382515
104739090909
112012103163
12b03141565
135a6a99907
1432d585d37
151cb0ba13e
hex11a78c9dd

4739090909 has 12 divisors (see below), whose sum is σ = 5513968188. Its totient is φ = 4061232000.

The previous prime is 4739090849. The next prime is 4739090927. The reversal of 4739090909 is 9090909374.

4739090909 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2219352100 + 2519738809 = 47110^2 + 50197^2 .

It is a de Polignac number, because none of the positive numbers 2k-4739090909 is a prime.

It is a Duffinian number.

4739090909 is a modest number, since divided by 90909 gives 4739 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4739090989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381029 + ... + 393269.

It is an arithmetic number, because the mean of its divisors is an integer number (459497349).

Almost surely, 24739090909 is an apocalyptic number.

4739090909 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4739090909 is a deficient number, since it is larger than the sum of its proper divisors (774877279).

4739090909 is a wasteful number, since it uses less digits than its factorization.

4739090909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20156 (or 20149 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 4739090909 is about 68841.0554030079. The cubic root of 4739090909 is about 1679.6998364196.

The spelling of 4739090909 in words is "four billion, seven hundred thirty-nine million, ninety thousand, nine hundred nine".

Divisors: 1 7 49 7901 12241 55307 85687 387149 599809 96716141 677012987 4739090909