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20095397 = 74097019
BaseRepresentation
bin100110010101…
…0000110100101
31101210221200222
41030222012211
520121023042
61554414125
7332544110
oct114520645
941727628
1020095397
1110385a73
126891345
13421798a
142951577
151b6e2d2
hex132a1a5

20095397 has 8 divisors (see below), whose sum is σ = 23025600. Its totient is φ = 17180064.

The previous prime is 20095381. The next prime is 20095421. The reversal of 20095397 is 79359002.

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

It is a cyclic number.

It is not a de Polignac number, because 20095397 - 24 = 20095381 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 (20095357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 6372.

It is an arithmetic number, because the mean of its divisors is an integer number (2878200).

Almost surely, 220095397 is an apocalyptic number.

It is an amenable number.

20095397 is a deficient number, since it is larger than the sum of its proper divisors (2930203).

20095397 is an equidigital number, since it uses as much as digits as its factorization.

20095397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 20095397 is about 4482.7889756267. The cubic root of 20095397 is about 271.8726561123.

The spelling of 20095397 in words is "twenty million, ninety-five thousand, three hundred ninety-seven".

Divisors: 1 7 409 2863 7019 49133 2870771 20095397