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20590676 = 2223322093
BaseRepresentation
bin100111010001…
…1000001010100
31102202010002122
41032203001110
520232400201
62013155112
7340006061
oct116430124
942663078
1020590676
1110694097
126a8ba98
13435c242
142a3dc68
151c1ae1b
hex13a3054

20590676 has 12 divisors (see below), whose sum is σ = 36189972. Its totient is φ = 10250688.

The previous prime is 20590657. The next prime is 20590693. The reversal of 20590676 is 67609502.

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 8549776 = 3470^2 + 2924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10115 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (3015831).

Almost surely, 220590676 is an apocalyptic number.

20590676 is the 2426-th centered heptagonal number.

It is an amenable number.

20590676 is a deficient number, since it is larger than the sum of its proper divisors (15599296).

20590676 is a wasteful number, since it uses less digits than its factorization.

20590676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330 (or 22328 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 20590676 is about 4537.6950095836. The cubic root of 20590676 is about 274.0881134554.

The spelling of 20590676 in words is "twenty million, five hundred ninety thousand, six hundred seventy-six".

Divisors: 1 2 4 233 466 932 22093 44186 88372 5147669 10295338 20590676