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212838344 = 2326604793
BaseRepresentation
bin11001010111110…
…10011111001000
3112211111022022122
430223322133020
5413441311334
633041510412
75163044645
oct1453723710
9484438278
10212838344
11aa161664
125b342408
1335130a64
14203a4dcc
1513a4332e
hexcafa7c8

212838344 has 8 divisors (see below), whose sum is σ = 399071910. Its totient is φ = 106419168.

The previous prime is 212838299. The next prime is 212838371. The reversal of 212838344 is 443838212.

It can be written as a sum of positive squares in only one way, i.e., 161544100 + 51294244 = 12710^2 + 7162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13302389 + ... + 13302404.

Almost surely, 2212838344 is an apocalyptic number.

It is an amenable number.

212838344 is a deficient number, since it is larger than the sum of its proper divisors (186233566).

212838344 is a wasteful number, since it uses less digits than its factorization.

212838344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26604799 (or 26604795 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 212838344 is about 14588.9802248135. The cubic root of 212838344 is about 597.0581400823.

The spelling of 212838344 in words is "two hundred twelve million, eight hundred thirty-eight thousand, three hundred forty-four".

Divisors: 1 2 4 8 26604793 53209586 106419172 212838344