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212461007 = 11179107903
BaseRepresentation
bin11001010100111…
…10010111001111
3112210210010201012
430222132113033
5413342223012
633025435435
75156613563
oct1452362717
9483703635
10212461007
11a9a24110
125b19bb7b
133502b095
14203076a3
15139bb622
hexca9e5cf

212461007 has 8 divisors (see below), whose sum is σ = 233072640. Its totient is φ = 192065560.

The previous prime is 212461003. The next prime is 212461013. The reversal of 212461007 is 700164212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212461007 - 22 = 212461003 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 (212461001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51983 + ... + 55920.

It is an arithmetic number, because the mean of its divisors is an integer number (29134080).

Almost surely, 2212461007 is an apocalyptic number.

212461007 is a deficient number, since it is larger than the sum of its proper divisors (20611633).

212461007 is a wasteful number, since it uses less digits than its factorization.

212461007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108093.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 212461007 is about 14576.0422268872. The cubic root of 212461007 is about 596.7050937387.

The spelling of 212461007 in words is "two hundred twelve million, four hundred sixty-one thousand, seven".

Divisors: 1 11 179 1969 107903 1186933 19314637 212461007