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20370226 = 223442831
BaseRepresentation
bin100110110110…
…1001100110010
31102022220200211
41031231030302
520203321401
62004334334
7335100262
oct115551462
942286624
1020370226
11105534a8
1269a43aa
1342b2ab6
1429c37a2
151bc5951
hex136d332

20370226 has 8 divisors (see below), whose sum is σ = 31883904. Its totient is φ = 9742260.

The previous prime is 20370221. The next prime is 20370227. The reversal of 20370226 is 62207302.

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

It is a super-2 number, since 2×203702262 = 829892214582152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20370197 and 20370206.

It is not an unprimeable number, because it can be changed into a prime (20370221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221370 + ... + 221461.

It is an arithmetic number, because the mean of its divisors is an integer number (3985488).

Almost surely, 220370226 is an apocalyptic number.

20370226 is a deficient number, since it is larger than the sum of its proper divisors (11513678).

20370226 is a wasteful number, since it uses less digits than its factorization.

20370226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442856.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20370226 is about 4513.3386755261. The cubic root of 20370226 is about 273.1064450039.

Adding to 20370226 its reverse (62207302), we get a palindrome (82577528).

The spelling of 20370226 in words is "twenty million, three hundred seventy thousand, two hundred twenty-six".

Divisors: 1 2 23 46 442831 885662 10185113 20370226