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212014220 = 22511963701
BaseRepresentation
bin11001010001100…
…01010010001100
3112202221102211112
430220301102030
5413233423340
633012111152
75153043155
oct1450612214
9482842745
10212014220
11a9749470
125b0054b8
1334c02902
142022c92c
151392e065
hexca3148c

212014220 has 24 divisors (see below), whose sum is σ = 485705808. Its totient is φ = 77096000.

The previous prime is 212014211. The next prime is 212014237. The reversal of 212014220 is 22410212.

It is a junction number, because it is equal to n+sod(n) for n = 212014195 and 212014204.

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, 481631 + ... + 482070.

It is an arithmetic number, because the mean of its divisors is an integer number (20237742).

Almost surely, 2212014220 is an apocalyptic number.

212014220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212014220 is an abundant number, since it is smaller than the sum of its proper divisors (273691588).

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

212014220 is a wasteful number, since it uses less digits than its factorization.

212014220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963721 (or 963719 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212014220 is about 14560.7080871776. The cubic root of 212014220 is about 596.2865272449.

Adding to 212014220 its reverse (22410212), we get a palindrome (234424432).

The spelling of 212014220 in words is "two hundred twelve million, fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 963701 1927402 3854804 4818505 9637010 10600711 19274020 21201422 42402844 53003555 106007110 212014220