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11387469 = 312173119
BaseRepresentation
bin101011011100…
…001001001101
3210102112200010
4223130021031
510403344334
61044023433
7165535422
oct53341115
923375603
1011387469
116478635
123991b79
132489262
141725d49
15eee0e9
hexadc24d

11387469 has 8 divisors (see below), whose sum is σ = 15200640. Its totient is φ = 7582976.

The previous prime is 11387449. The next prime is 11387473. The reversal of 11387469 is 96478311.

11387469 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11387469 is a prime.

It is a super-2 number, since 2×113874692 = 259348900451922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11387429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092 + ... + 5210.

It is an arithmetic number, because the mean of its divisors is an integer number (1900080).

Almost surely, 211387469 is an apocalyptic number.

It is an amenable number.

11387469 is a deficient number, since it is larger than the sum of its proper divisors (3813171).

11387469 is a wasteful number, since it uses less digits than its factorization.

11387469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339.

The product of its digits is 36288, while the sum is 39.

The square root of 11387469 is about 3374.5324120536. The cubic root of 11387469 is about 224.9792178336.

The spelling of 11387469 in words is "eleven million, three hundred eighty-seven thousand, four hundred sixty-nine".

Divisors: 1 3 1217 3119 3651 9357 3795823 11387469