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212967274 = 2138191049
BaseRepresentation
bin11001011000110…
…01111101101010
3112211201212011211
430230121331222
5414004423044
633044343334
75164122562
oct1454317552
9484655154
10212967274
11aa23a513
125b3a4b4a
1335177650
14203d9da2
1513a6b634
hexcb19f6a

212967274 has 8 divisors (see below), whose sum is σ = 344024100. Its totient is φ = 98292576.

The previous prime is 212967263. The next prime is 212967277. The reversal of 212967274 is 472769212.

It can be written as a sum of positive squares in 2 ways, for example, as 207561649 + 5405625 = 14407^2 + 2325^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (212967277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4095499 + ... + 4095550.

Almost surely, 2212967274 is an apocalyptic number.

212967274 is a deficient number, since it is larger than the sum of its proper divisors (131056826).

212967274 is a wasteful number, since it uses less digits than its factorization.

212967274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191064.

The product of its digits is 84672, while the sum is 40.

The square root of 212967274 is about 14593.3983019720. The cubic root of 212967274 is about 597.1786747035.

The spelling of 212967274 in words is "two hundred twelve million, nine hundred sixty-seven thousand, two hundred seventy-four".

Divisors: 1 2 13 26 8191049 16382098 106483637 212967274