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20610268 = 2276171193
BaseRepresentation
bin100111010011…
…1110011011100
31102210002222021
41032213303130
520234012033
62013425524
7340120150
oct116476334
942702867
1020610268
11106a7888
126a9b2a4
134368133
142a47060
151c21b2d
hex13a7cdc

20610268 has 24 divisors (see below), whose sum is σ = 41321952. Its totient is φ = 8811264.

The previous prime is 20610263. The next prime is 20610283. The reversal of 20610268 is 86201602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610263) 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, 16680 + ... + 17872.

It is an arithmetic number, because the mean of its divisors is an integer number (1721748).

Almost surely, 220610268 is an apocalyptic number.

20610268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20610268 is an abundant number, since it is smaller than the sum of its proper divisors (20711684).

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

20610268 is a wasteful number, since it uses less digits than its factorization.

20610268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20610268 is about 4539.8533015947. The cubic root of 20610268 is about 274.1750173863.

The spelling of 20610268 in words is "twenty million, six hundred ten thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 617 1193 1234 2386 2468 4319 4772 8351 8638 16702 17276 33404 736081 1472162 2944324 5152567 10305134 20610268