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20012254 = 223439991
BaseRepresentation
bin100110001010…
…1110011011110
31101122201122121
41030111303132
520110343004
61552533154
7332046523
oct114256336
941581577
1020012254
1110329559
1268511ba
1341b8b92
14292d14a
151b54854
hex1315cde

20012254 has 16 divisors (see below), whose sum is σ = 31426560. Its totient is φ = 9539640.

The previous prime is 20012219. The next prime is 20012261. The reversal of 20012254 is 45221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19699 + ... + 20689.

It is an arithmetic number, because the mean of its divisors is an integer number (1964160).

Almost surely, 220012254 is an apocalyptic number.

20012254 is a deficient number, since it is larger than the sum of its proper divisors (11414306).

20012254 is a wasteful number, since it uses less digits than its factorization.

20012254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20012254 is about 4473.5057840580. The cubic root of 20012254 is about 271.4971877970.

Adding to 20012254 its reverse (45221002), we get a palindrome (65233256).

The spelling of 20012254 in words is "twenty million, twelve thousand, two hundred fifty-four".

Divisors: 1 2 23 46 439 878 991 1982 10097 20194 22793 45586 435049 870098 10006127 20012254