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212080424 = 23233137181
BaseRepresentation
bin11001010010000…
…01011100101000
3112210001210122112
430221001130220
5413243033144
633013341452
75153440163
oct1451013450
9483053575
10212080424
11a9794186
125b037888
1334c26a9a
1420248ada
151394399e
hexca41728

212080424 has 32 divisors (see below), whose sum is σ = 428336640. Its totient is φ = 98155200.

The previous prime is 212080409. The next prime is 212080439. The reversal of 212080424 is 424080212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212080409) and next prime (212080439).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 212080424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12887 + ... + 24294.

It is an arithmetic number, because the mean of its divisors is an integer number (13385520).

Almost surely, 2212080424 is an apocalyptic number.

It is an amenable number.

212080424 is an abundant number, since it is smaller than the sum of its proper divisors (216256216).

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

212080424 is a wasteful number, since it uses less digits than its factorization.

212080424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37241 (or 37237 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 212080424 is about 14562.9812881841. The cubic root of 212080424 is about 596.3485866750.

The spelling of 212080424 in words is "two hundred twelve million, eighty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 23 31 46 62 92 124 184 248 713 1426 2852 5704 37181 74362 148724 297448 855163 1152611 1710326 2305222 3420652 4610444 6841304 9220888 26510053 53020106 106040212 212080424