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11490213 = 372572129
BaseRepresentation
bin101011110101…
…001110100101
3210121202121110
4223311032211
510420141323
61050135233
7166444110
oct53651645
923552543
1011490213
116538849
123a21519
1324c3c57
141751577
15101e793
hexaf53a5

11490213 has 16 divisors (see below), whose sum is σ = 17585280. Its totient is φ = 6537216.

The previous prime is 11490203. The next prime is 11490217. The reversal of 11490213 is 31209411.

It is not a de Polignac number, because 11490213 - 24 = 11490197 is a prime.

It is a super-3 number, since 3×114902133 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11490213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11490217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4333 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (1099080).

Almost surely, 211490213 is an apocalyptic number.

It is an amenable number.

11490213 is a deficient number, since it is larger than the sum of its proper divisors (6095067).

11490213 is a wasteful number, since it uses less digits than its factorization.

11490213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11490213 is about 3389.7216699900. The cubic root of 11490213 is about 225.6538216929.

Adding to 11490213 its reverse (31209411), we get a palindrome (42699624).

The spelling of 11490213 in words is "eleven million, four hundred ninety thousand, two hundred thirteen".

Divisors: 1 3 7 21 257 771 1799 2129 5397 6387 14903 44709 547153 1641459 3830071 11490213