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4426749 = 321728933
BaseRepresentation
bin10000111000101111111101
322022220100200
4100320233331
52113123444
6234514113
752424655
oct20705775
98286320
104426749
112553978
121595939
13bbcba2
14833365
155c6969
hex438bfd

4426749 has 12 divisors (see below), whose sum is σ = 6770556. Its totient is φ = 2777472.

The previous prime is 4426739. The next prime is 4426777. The reversal of 4426749 is 9476244.

It can be written as a sum of positive squares in 2 ways, for example, as 2913849 + 1512900 = 1707^2 + 1230^2 .

It is not a de Polignac number, because 4426749 - 28 = 4426493 is a prime.

It is a super-3 number, since 3×44267493 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4426739) 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, 14314 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (564213).

Almost surely, 24426749 is an apocalyptic number.

It is an amenable number.

4426749 is a deficient number, since it is larger than the sum of its proper divisors (2343807).

4426749 is a wasteful number, since it uses less digits than its factorization.

4426749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28956 (or 28953 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 4426749 is about 2103.9840778865. The cubic root of 4426749 is about 164.1956444620.

The spelling of 4426749 in words is "four million, four hundred twenty-six thousand, seven hundred forty-nine".

Divisors: 1 3 9 17 51 153 28933 86799 260397 491861 1475583 4426749