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212014004 = 22173117853
BaseRepresentation
bin11001010001100…
…01001110110100
3112202221102112112
430220301032310
5413233422004
633012110152
75153042426
oct1450611664
9482842475
10212014004
11a9749294
125b005358
1334c02797
142022c816
151392de6e
hexca313b4

212014004 has 12 divisors (see below), whose sum is σ = 392849604. Its totient is φ = 99771264.

The previous prime is 212014001. The next prime is 212014009. The reversal of 212014004 is 400410212.

It can be written as a sum of positive squares in 2 ways, for example, as 69689104 + 142324900 = 8348^2 + 11930^2 .

It is a super-2 number, since 2×2120140042 = 89899875784224032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212014004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212014001) 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 3 ways as a sum of consecutive naturals, for example, 1558859 + ... + 1558994.

It is an arithmetic number, because the mean of its divisors is an integer number (32737467).

Almost surely, 2212014004 is an apocalyptic number.

It is an amenable number.

212014004 is a deficient number, since it is larger than the sum of its proper divisors (180835600).

212014004 is a wasteful number, since it uses less digits than its factorization.

212014004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117874 (or 3117872 counting only the distinct ones).

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

The square root of 212014004 is about 14560.7006699540. The cubic root of 212014004 is about 596.2863247460.

Adding to 212014004 its reverse (400410212), we get a palindrome (612424216).

The spelling of 212014004 in words is "two hundred twelve million, fourteen thousand, four".

Divisors: 1 2 4 17 34 68 3117853 6235706 12471412 53003501 106007002 212014004