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20048270 = 25111771151
BaseRepresentation
bin100110001111…
…0100110001110
31101201120001112
41030132212032
520113021040
61553412022
7332256524
oct114364616
941646045
1020048270
1110353620
12686a012
1341cc3a8
14293c314
151b60365
hex131e98e

20048270 has 64 divisors (see below), whose sum is σ = 42550272. Its totient is φ = 6720000.

The previous prime is 20048267. The next prime is 20048311. The reversal of 20048270 is 7284002.

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 31 ways as a sum of consecutive naturals, for example, 132695 + ... + 132845.

It is an arithmetic number, because the mean of its divisors is an integer number (664848).

Almost surely, 220048270 is an apocalyptic number.

20048270 is an abundant number, since it is smaller than the sum of its proper divisors (22502002).

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

20048270 is a wasteful number, since it uses less digits than its factorization.

20048270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20048270 is about 4477.5294527228. The cubic root of 20048270 is about 271.6599611093.

The spelling of 20048270 in words is "twenty million, forty-eight thousand, two hundred seventy".

Divisors: 1 2 5 10 11 17 22 34 55 71 85 110 142 151 170 187 302 355 374 710 755 781 935 1207 1510 1562 1661 1870 2414 2567 3322 3905 5134 6035 7810 8305 10721 12070 12835 13277 16610 21442 25670 26554 28237 53605 56474 66385 107210 117931 132770 141185 182257 235862 282370 364514 589655 911285 1179310 1822570 2004827 4009654 10024135 20048270