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220871196 = 223271367421
BaseRepresentation
bin11010010101000…
…11101000011100
3120101121102022200
431022203220130
5423020334241
633530011500
75321242230
oct1512435034
9511542280
10220871196
11103748887
1261b76b90
13369b4120
14214965c0
15145cd4b6
hexd2a3a1c

220871196 has 72 divisors (see below), whose sum is σ = 687165024. Its totient is φ = 58250880.

The previous prime is 220871171. The next prime is 220871207. The reversal of 220871196 is 691178022.

220871196 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 220871196.

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, 30435 + ... + 36986.

Almost surely, 2220871196 is an apocalyptic number.

220871196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

220871196 is an abundant number, since it is smaller than the sum of its proper divisors (466293828).

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

220871196 is a wasteful number, since it uses less digits than its factorization.

220871196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67451 (or 67446 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 220871196 is about 14861.7359685872. The cubic root of 220871196 is about 604.4768795021.

The spelling of 220871196 in words is "two hundred twenty million, eight hundred seventy-one thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 819 1092 1638 3276 67421 134842 202263 269684 404526 471947 606789 809052 876473 943894 1213578 1415841 1752946 1887788 2427156 2629419 2831682 3505892 4247523 5258838 5663364 6135311 7888257 8495046 10517676 12270622 15776514 16990092 18405933 24541244 31553028 36811866 55217799 73623732 110435598 220871196