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1317407 = 71331467
BaseRepresentation
bin101000001101000011111
32110221010212
411001220133
5314124112
644123035
714124560
oct5015037
92427125
101317407
1181a873
1253647b
13371840
14264167
151b0522
hex141a1f

1317407 has 16 divisors (see below), whose sum is σ = 1677312. Its totient is φ = 1006560.

The previous prime is 1317401. The next prime is 1317409. The reversal of 1317407 is 7047131.

It is a cyclic number.

It is not a de Polignac number, because 1317407 - 212 = 1313311 is a prime.

It is a super-2 number, since 2×13174072 = 3471122407298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317401) 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, 2588 + ... + 3054.

It is an arithmetic number, because the mean of its divisors is an integer number (104832).

21317407 is an apocalyptic number.

1317407 is a deficient number, since it is larger than the sum of its proper divisors (359905).

1317407 is a wasteful number, since it uses less digits than its factorization.

1317407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 1317407 is about 1147.7835161737. The cubic root of 1317407 is about 109.6242551589.

The spelling of 1317407 in words is "one million, three hundred seventeen thousand, four hundred seven".

Divisors: 1 7 13 31 91 217 403 467 2821 3269 6071 14477 42497 101339 188201 1317407