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212555413 = 7192955109
BaseRepresentation
bin11001010101101…
…01011010010101
3112210221221012201
430222311122111
5413403233123
633031444501
75160456040
oct1452653225
9483857181
10212555413
11a9a89034
125b226731
1335062045
142032dc57
15139d95ad
hexcab5695

212555413 has 16 divisors (see below), whose sum is σ = 264528000. Its totient is φ = 166646592.

The previous prime is 212555401. The next prime is 212555449. The reversal of 212555413 is 314555212.

It is not a de Polignac number, because 212555413 - 25 = 212555381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212556413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23698 + ... + 31411.

It is an arithmetic number, because the mean of its divisors is an integer number (16533000).

Almost surely, 2212555413 is an apocalyptic number.

It is an amenable number.

212555413 is a deficient number, since it is larger than the sum of its proper divisors (51972587).

212555413 is a wasteful number, since it uses less digits than its factorization.

212555413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55164.

The product of its digits is 6000, while the sum is 28.

The square root of 212555413 is about 14579.2802634424. The cubic root of 212555413 is about 596.7934616393.

The spelling of 212555413 in words is "two hundred twelve million, five hundred fifty-five thousand, four hundred thirteen".

Divisors: 1 7 19 29 133 203 551 3857 55109 385763 1047071 1598161 7329497 11187127 30365059 212555413