Search a number
-
+
227620020 = 223513727691
BaseRepresentation
bin11011001000100…
…11010010110100
3120212022021222010
431210103102310
5431232320040
634330404220
75432511135
oct1544232264
9525267863
10227620020
11107538321
1264290670
1338207c04
1422331c8c
1514eb2e80
hexd9134b4

227620020 has 48 divisors (see below), whose sum is σ = 642011328. Its totient is φ = 60253440.

The previous prime is 227620007. The next prime is 227620039. The reversal of 227620020 is 20026722.

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, 5626 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (13375236).

Almost surely, 2227620020 is an apocalyptic number.

227620020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227620020 is an abundant number, since it is smaller than the sum of its proper divisors (414391308).

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

227620020 is a wasteful number, since it uses less digits than its factorization.

227620020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840 (or 27838 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 227620020 is about 15087.0812286539. The cubic root of 227620020 is about 610.5719083205.

Adding to 227620020 its reverse (20026722), we get a palindrome (247646742).

The spelling of 227620020 in words is "two hundred twenty-seven million, six hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 137 274 411 548 685 822 1370 1644 2055 2740 4110 8220 27691 55382 83073 110764 138455 166146 276910 332292 415365 553820 830730 1661460 3793667 7587334 11381001 15174668 18968335 22762002 37936670 45524004 56905005 75873340 113810010 227620020