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212072413 = 747644597
BaseRepresentation
bin11001010001111…
…11011111011101
3112210001101122211
430220333133131
5413242304123
633013240421
75153404630
oct1450773735
9483041584
10212072413
11a9789163
125b033111
1334c23247
1420245c17
151394140d
hexca3f7dd

212072413 has 8 divisors (see below), whose sum is σ = 247525632. Its totient is φ = 177908496.

The previous prime is 212072407. The next prime is 212072437. The reversal of 212072413 is 314270212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212072413 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 (212072713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321970 + ... + 322627.

It is an arithmetic number, because the mean of its divisors is an integer number (30940704).

Almost surely, 2212072413 is an apocalyptic number.

It is an amenable number.

212072413 is a deficient number, since it is larger than the sum of its proper divisors (35453219).

212072413 is an equidigital number, since it uses as much as digits as its factorization.

212072413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644651.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 212072413 is about 14562.7062388829. The cubic root of 212072413 is about 596.3410778746.

The spelling of 212072413 in words is "two hundred twelve million, seventy-two thousand, four hundred thirteen".

Divisors: 1 7 47 329 644597 4512179 30296059 212072413