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5490018 = 23433889
BaseRepresentation
bin10100111100010101100010
3101022220220000
4110330111202
52401140033
6313400430
764443612
oct24742542
911286800
105490018
11310a806
121a09116
1311a2b41
14a2ca42
15736a13
hex53c562

5490018 has 20 divisors (see below), whose sum is σ = 12302070. Its totient is φ = 1829952.

The previous prime is 5490013. The next prime is 5490041. The reversal of 5490018 is 8100945.

It can be written as a sum of positive squares in only one way, i.e., 3337929 + 2152089 = 1827^2 + 1467^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 5489973 and 5490000.

It is not an unprimeable number, because it can be changed into a prime (5490011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16783 + ... + 17106.

Almost surely, 25490018 is an apocalyptic number.

5490018 is an abundant number, since it is smaller than the sum of its proper divisors (6812052).

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

5490018 is a wasteful number, since it uses less digits than its factorization.

5490018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33903 (or 33894 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 5490018 is about 2343.0787438752. The cubic root of 5490018 is about 176.4105644096.

The spelling of 5490018 in words is "five million, four hundred ninety thousand, eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 33889 67778 101667 203334 305001 610002 915003 1830006 2745009 5490018