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11407212 = 2232437369
BaseRepresentation
bin101011100000…
…111101101100
3210110112202100
4223200331230
510410012322
61044255100
7165650115
oct53407554
923415670
1011407212
116491453
1239a1490
13249523b
14172d20c
151004dac
hexae0f6c

11407212 has 36 divisors (see below), whose sum is σ = 29509480. Its totient is φ = 3713472.

The previous prime is 11407159. The next prime is 11407213. The reversal of 11407212 is 21270411.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×114072123 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11407213) 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, 2137 + ... + 5232.

Almost surely, 211407212 is an apocalyptic number.

11407212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11407212 is an abundant number, since it is smaller than the sum of its proper divisors (18102268).

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

11407212 is a wasteful number, since it uses less digits than its factorization.

11407212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422 (or 7417 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 11407212 is about 3377.4564393934. The cubic root of 11407212 is about 225.1091618449.

Adding to 11407212 its reverse (21270411), we get a palindrome (32677623).

The spelling of 11407212 in words is "eleven million, four hundred seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 387 516 774 1548 7369 14738 22107 29476 44214 66321 88428 132642 265284 316867 633734 950601 1267468 1901202 2851803 3802404 5703606 11407212