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4426731 = 3518217
BaseRepresentation
bin10000111000101111101011
322022220100000
4100320233223
52113123411
6234514043
752424631
oct20705753
98286300
104426731
112553961
121595923
13bbcb8a
14833351
155c6956
hex438beb

4426731 has 12 divisors (see below), whose sum is σ = 6631352. Its totient is φ = 2950992.

The previous prime is 4426699. The next prime is 4426739. The reversal of 4426731 is 1376244.

It is not a de Polignac number, because 4426731 - 25 = 4426699 is a prime.

It is a super-2 number, since 2×44267312 = 39191894692722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4426695 and 4426704.

It is not an unprimeable number, because it can be changed into a prime (4426739) 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 11 ways as a sum of consecutive naturals, for example, 8866 + ... + 9351.

Almost surely, 24426731 is an apocalyptic number.

4426731 is a deficient number, since it is larger than the sum of its proper divisors (2204621).

4426731 is an equidigital number, since it uses as much as digits as its factorization.

4426731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18232 (or 18220 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 4426731 is about 2103.9798002833. The cubic root of 4426731 is about 164.1954219115.

The spelling of 4426731 in words is "four million, four hundred twenty-six thousand, seven hundred thirty-one".

Divisors: 1 3 9 27 81 243 18217 54651 163953 491859 1475577 4426731