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20248260 = 2235418231
BaseRepresentation
bin100110100111…
…1011011000100
31102002201101120
41031033123010
520140421020
62001553540
7334051554
oct115173304
942081346
1020248260
111047a8aa
1269458b0
13426c426
142991164
151b9e740
hex134f6c4

20248260 has 48 divisors (see below), whose sum is σ = 58084992. Its totient is φ = 5267200.

The previous prime is 20248247. The next prime is 20248273. The reversal of 20248260 is 6284202.

It is an interprime number because it is at equal distance from previous prime (20248247) and next prime (20248273).

It is a self number, because there is not a number n which added to its sum of digits gives 20248260.

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 15 ways as a sum of consecutive naturals, for example, 1656 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1210104).

Almost surely, 220248260 is an apocalyptic number.

20248260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20248260 is an abundant number, since it is smaller than the sum of its proper divisors (37836732).

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

20248260 is a wasteful number, since it uses less digits than its factorization.

20248260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20248260 is about 4499.8066625134. The cubic root of 20248260 is about 272.5602818127.

The spelling of 20248260 in words is "twenty million, two hundred forty-eight thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 8231 16462 24693 32924 41155 49386 82310 98772 123465 164620 246930 337471 493860 674942 1012413 1349884 1687355 2024826 3374710 4049652 5062065 6749420 10124130 20248260