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20470341 = 36823447
BaseRepresentation
bin100111000010…
…1101001000101
31102112000000210
41032011221011
520220022331
62010430033
7335665203
oct116055105
942460023
1020470341
1110611741
126a32319
134319538
142a0c073
151be5446
hex1385a45

20470341 has 4 divisors (see below), whose sum is σ = 27293792. Its totient is φ = 13646892.

The previous prime is 20470339. The next prime is 20470343. The reversal of 20470341 is 14307402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20470339) and next prime (20470343).

It is not a de Polignac number, because 20470341 - 21 = 20470339 is a prime.

It is a super-3 number, since 3×204703413 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20470343) 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 3 ways as a sum of consecutive naturals, for example, 3411721 + ... + 3411726.

It is an arithmetic number, because the mean of its divisors is an integer number (6823448).

Almost surely, 220470341 is an apocalyptic number.

It is an amenable number.

20470341 is a deficient number, since it is larger than the sum of its proper divisors (6823451).

20470341 is an equidigital number, since it uses as much as digits as its factorization.

20470341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823450.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20470341 is about 4524.4160949232. The cubic root of 20470341 is about 273.5531325752.

Adding to 20470341 its reverse (14307402), we get a palindrome (34777743).

The spelling of 20470341 in words is "twenty million, four hundred seventy thousand, three hundred forty-one".

Divisors: 1 3 6823447 20470341