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11438407 = 531072017
BaseRepresentation
bin101011101000…
…100101000111
3210112010112201
4223220211013
510412012112
61045055331
7166140061
oct53504507
923463481
1011438407
116502932
1239b7547
1324a64b6
14173a731
15100e257
hexae8947

11438407 has 8 divisors (see below), whose sum is σ = 11768976. Its totient is φ = 11112192.

The previous prime is 11438393. The next prime is 11438423. The reversal of 11438407 is 70483411.

11438407 is digitally balanced in base 2, because in such base 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 de Polignac number, because none of the positive numbers 2k-11438407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438447) 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, 4663 + ... + 6679.

It is an arithmetic number, because the mean of its divisors is an integer number (1471122).

Almost surely, 211438407 is an apocalyptic number.

11438407 is a deficient number, since it is larger than the sum of its proper divisors (330569).

11438407 is a wasteful number, since it uses less digits than its factorization.

11438407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 11438407 is about 3382.0714066974. The cubic root of 11438407 is about 225.3141750943.

The spelling of 11438407 in words is "eleven million, four hundred thirty-eight thousand, four hundred seven".

Divisors: 1 53 107 2017 5671 106901 215819 11438407