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211424060 = 22573179809
BaseRepresentation
bin11001001101000…
…01001100111100
3112201211110021202
430212201030330
5413111032220
632551315032
75145034451
oct1446411474
9481743252
10211424060
11a9386031
125a97ba78
1334a570c3
1420117828
1513864275
hexc9a133c

211424060 has 48 divisors (see below), whose sum is σ = 453146400. Its totient is φ = 82842624.

The previous prime is 211424051. The next prime is 211424063. The reversal of 211424060 is 60424112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211424063) by changing a digit.

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, 260936 + ... + 261744.

It is an arithmetic number, because the mean of its divisors is an integer number (9440550).

Almost surely, 2211424060 is an apocalyptic number.

211424060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211424060 is an abundant number, since it is smaller than the sum of its proper divisors (241722340).

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

211424060 is a wasteful number, since it uses less digits than its factorization.

211424060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 211424060 is about 14540.4284668644. The cubic root of 211424060 is about 595.7327413060.

Adding to 211424060 its reverse (60424112), we get a palindrome (271848172).

The spelling of 211424060 in words is "two hundred eleven million, four hundred twenty-four thousand, sixty".

Divisors: 1 2 4 5 10 20 73 146 179 292 358 365 716 730 809 895 1460 1618 1790 3236 3580 4045 8090 13067 16180 26134 52268 59057 65335 118114 130670 144811 236228 261340 289622 295285 579244 590570 724055 1181140 1448110 2896220 10571203 21142406 42284812 52856015 105712030 211424060