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20746054 = 2710314387
BaseRepresentation
bin100111100100…
…0111101000110
31110001000020101
41033020331012
520302333204
62020354314
7341224060
oct117107506
943030211
1020746054
111078a8aa
126b4599a
1343b4b94
142a80730
151c4bea4
hex13c8f46

20746054 has 16 divisors (see below), whose sum is σ = 35912448. Its totient is φ = 8804232.

The previous prime is 20746051. The next prime is 20746067. The reversal of 20746054 is 45064702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20746051) 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 7 ways as a sum of consecutive naturals, for example, 5752 + ... + 8635.

It is an arithmetic number, because the mean of its divisors is an integer number (2244528).

Almost surely, 220746054 is an apocalyptic number.

20746054 is a deficient number, since it is larger than the sum of its proper divisors (15166394).

20746054 is a wasteful number, since it uses less digits than its factorization.

20746054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14499.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20746054 is about 4554.7836392083. The cubic root of 20746054 is about 274.7758128788.

It can be divided in two parts, 2074 and 6054, that added together give a triangular number (8128 = T127).

The spelling of 20746054 in words is "twenty million, seven hundred forty-six thousand, fifty-four".

Divisors: 1 2 7 14 103 206 721 1442 14387 28774 100709 201418 1481861 2963722 10373027 20746054