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20256110 = 257267617
BaseRepresentation
bin100110101000…
…1010101101110
31102010010011022
41031101111232
520141143420
62002054142
7334113500
oct115212556
942103138
1020256110
1110485796
12694a352
134272b84
142993d70
151ba1c25
hex135156e

20256110 has 48 divisors (see below), whose sum is σ = 43116624. Its totient is φ = 6830208.

The previous prime is 20256073. The next prime is 20256127. The reversal of 20256110 is 1165202.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 32522 + ... + 33138.

It is an arithmetic number, because the mean of its divisors is an integer number (898263).

Almost surely, 220256110 is an apocalyptic number.

20256110 is an abundant number, since it is smaller than the sum of its proper divisors (22860514).

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

20256110 is a wasteful number, since it uses less digits than its factorization.

20256110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20256110 is about 4500.6788376866. The cubic root of 20256110 is about 272.5955000121.

The spelling of 20256110 in words is "twenty million, two hundred fifty-six thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 49 67 70 98 134 245 335 469 490 617 670 938 1234 2345 3085 3283 4319 4690 6170 6566 8638 16415 21595 30233 32830 41339 43190 60466 82678 151165 206695 289373 302330 413390 578746 1446865 2025611 2893730 4051222 10128055 20256110