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212448467 = 7211394153
BaseRepresentation
bin11001010100110…
…11010011010011
3112210202111111202
430222123103103
5413341322332
633025301415
75156532200
oct1452332323
9483674452
10212448467
11a9a15750
125b19486b
133502546a
1420302ca7
15139b7a62
hexca9b4d3

212448467 has 12 divisors (see below), whose sum is σ = 269601336. Its totient is φ = 165543840.

The previous prime is 212448463. The next prime is 212448479. The reversal of 212448467 is 764844212.

It is not a de Polignac number, because 212448467 - 22 = 212448463 is a prime.

It is a super-2 number, since 2×2124484672 = 90268702261300178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212448467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212448463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196538 + ... + 197615.

It is an arithmetic number, because the mean of its divisors is an integer number (22466778).

Almost surely, 2212448467 is an apocalyptic number.

212448467 is a deficient number, since it is larger than the sum of its proper divisors (57152869).

212448467 is a wasteful number, since it uses less digits than its factorization.

212448467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394178 (or 394171 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 212448467 is about 14575.6120626202. The cubic root of 212448467 is about 596.6933538133.

The spelling of 212448467 in words is "two hundred twelve million, four hundred forty-eight thousand, four hundred sixty-seven".

Divisors: 1 7 11 49 77 539 394153 2759071 4335683 19313497 30349781 212448467