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20514426 = 2329117899
BaseRepresentation
bin100111001000…
…0011001111010
31102121020111120
41032100121322
520222430201
62011410110
7336240552
oct116203172
942536446
1020514426
1110641879
126a53936
13433361a
142a20162
151c03536
hex139067a

20514426 has 16 divisors (see below), whose sum is σ = 42444000. Its totient is φ = 6602288.

The previous prime is 20514421. The next prime is 20514443. The reversal of 20514426 is 62441502.

It is a junction number, because it is equal to n+sod(n) for n = 20514396 and 20514405.

It is not an unprimeable number, because it can be changed into a prime (20514421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58776 + ... + 59123.

It is an arithmetic number, because the mean of its divisors is an integer number (2652750).

Almost surely, 220514426 is an apocalyptic number.

20514426 is an abundant number, since it is smaller than the sum of its proper divisors (21929574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20514426 is a wasteful number, since it uses less digits than its factorization.

20514426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117933.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20514426 is about 4529.2853740960. The cubic root of 20514426 is about 273.7493667757.

Adding to 20514426 its reverse (62441502), we get a palindrome (82955928).

The spelling of 20514426 in words is "twenty million, five hundred fourteen thousand, four hundred twenty-six".

Divisors: 1 2 3 6 29 58 87 174 117899 235798 353697 707394 3419071 6838142 10257213 20514426