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1090212 = 223471933
BaseRepresentation
bin100001010001010100100
32001101111020
410022022210
5234341322
635211140
712160314
oct4121244
92041436
101090212
11685102
12446ab0
132c22c6
14205444
1516805c
hex10a2a4

1090212 has 24 divisors (see below), whose sum is σ = 2599296. Its totient is φ = 355488.

The previous prime is 1090211. The next prime is 1090213. The reversal of 1090212 is 2120901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1090211) and next prime (1090213).

It is a junction number, because it is equal to n+sod(n) for n = 1090191 and 1090200.

It is not an unprimeable number, because it can be changed into a prime (1090211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 1530.

It is an arithmetic number, because the mean of its divisors is an integer number (108304).

21090212 is an apocalyptic number.

1090212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1090212 is an abundant number, since it is smaller than the sum of its proper divisors (1509084).

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

1090212 is a wasteful number, since it uses less digits than its factorization.

1090212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1090212 is about 1044.1321755410. The cubic root of 1090212 is about 102.9209183409.

The spelling of 1090212 in words is "one million, ninety thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 1933 3866 5799 7732 11598 23196 90851 181702 272553 363404 545106 1090212