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11212038 = 2322947457
BaseRepresentation
bin101010110001…
…010100000110
3210002122000200
4222301110012
510332241123
61040151330
7164205105
oct52612406
923078020
1011212038
116368852
123908546
132427456
1416bc03c
15eb7143
hexab1506

11212038 has 48 divisors (see below), whose sum is σ = 25721280. Its totient is φ = 3523968.

The previous prime is 11212037. The next prime is 11212051. The reversal of 11212038 is 83021211.

It is a super-2 number, since 2×112120382 = 251419592226888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 11212038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24306 + ... + 24762.

It is an arithmetic number, because the mean of its divisors is an integer number (535860).

Almost surely, 211212038 is an apocalyptic number.

11212038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12860640).

11212038 is an abundant number, since it is smaller than the sum of its proper divisors (14509242).

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

11212038 is a wasteful number, since it uses less digits than its factorization.

11212038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11212038 is about 3348.4381433737. The cubic root of 11212038 is about 223.8179191042.

Adding to 11212038 its reverse (83021211), we get a palindrome (94233249).

It can be divided in two parts, 1121203 and 8, that added together give a palindrome (1121211).

The spelling of 11212038 in words is "eleven million, two hundred twelve thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 29 47 58 87 94 141 174 261 282 423 457 522 846 914 1363 1371 2726 2742 4089 4113 8178 8226 12267 13253 21479 24534 26506 39759 42958 64437 79518 119277 128874 193311 238554 386622 622891 1245782 1868673 3737346 5606019 11212038