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20453054 = 213677481
BaseRepresentation
bin100111000000…
…1011010111110
31102111010022112
41032001122332
520213444204
62010214022
7335563616
oct116013276
942433275
1020453054
11105aa756
126a24312
1343116cb
142a05a46
151be026e
hex13816be

20453054 has 8 divisors (see below), whose sum is σ = 30706128. Its totient is φ = 10217680.

The previous prime is 20453053. The next prime is 20453089. The reversal of 20453054 is 45035402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453053) 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, 1007 + ... + 6474.

It is an arithmetic number, because the mean of its divisors is an integer number (3838266).

Almost surely, 220453054 is an apocalyptic number.

20453054 is a deficient number, since it is larger than the sum of its proper divisors (10253074).

20453054 is a wasteful number, since it uses less digits than its factorization.

20453054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 20453054 is about 4522.5052791567. The cubic root of 20453054 is about 273.4761065859.

Adding to 20453054 its reverse (45035402), we get a palindrome (65488456).

The spelling of 20453054 in words is "twenty million, four hundred fifty-three thousand, fifty-four".

Divisors: 1 2 1367 2734 7481 14962 10226527 20453054