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997293 = 31147643
BaseRepresentation
bin11110011011110101101
31212200000210
43303132231
5223403133
633213033
711322363
oct3633655
91780023
10997293
11621310
12401179
1328bc1b
141bd633
1514a763
hexf37ad

997293 has 16 divisors (see below), whose sum is σ = 1483776. Its totient is φ = 590640.

The previous prime is 997279. The next prime is 997307. The reversal of 997293 is 392799.

It is an interprime number because it is at equal distance from previous prime (997279) and next prime (997307).

It is not a de Polignac number, because 997293 - 28 = 997037 is a prime.

997293 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997273) 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, 1230 + ... + 1872.

It is an arithmetic number, because the mean of its divisors is an integer number (92736).

2997293 is an apocalyptic number.

It is an amenable number.

997293 is a deficient number, since it is larger than the sum of its proper divisors (486483).

997293 is a wasteful number, since it uses less digits than its factorization.

997293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 30618, while the sum is 39.

The square root of 997293 is about 998.6455827770. The cubic root of 997293 is about 99.9096851235.

The spelling of 997293 in words is "nine hundred ninety-seven thousand, two hundred ninety-three".

Divisors: 1 3 11 33 47 141 517 643 1551 1929 7073 21219 30221 90663 332431 997293