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20626814 = 21317232029
BaseRepresentation
bin100111010101…
…1110101111110
31102210221200002
41032223311332
520240024224
62014034302
7340216325
oct116536576
942727602
1020626814
111070925a
126aa8992
134372820
142a4d0bc
151c269ae
hex13abd7e

20626814 has 32 divisors (see below), whose sum is σ = 36832320. Its totient is φ = 8566272.

The previous prime is 20626789. The next prime is 20626841. The reversal of 20626814 is 41862602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9152 + ... + 11180.

It is an arithmetic number, because the mean of its divisors is an integer number (1151010).

Almost surely, 220626814 is an apocalyptic number.

20626814 is a deficient number, since it is larger than the sum of its proper divisors (16205506).

20626814 is a wasteful number, since it uses less digits than its factorization.

20626814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20626814 is about 4541.6752415821. The cubic root of 20626814 is about 274.2483673367.

The spelling of 20626814 in words is "twenty million, six hundred twenty-six thousand, eight hundred fourteen".

Divisors: 1 2 13 17 23 26 34 46 221 299 391 442 598 782 2029 4058 5083 10166 26377 34493 46667 52754 68986 93334 448409 606671 793339 896818 1213342 1586678 10313407 20626814