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234012213 = 3340921191
BaseRepresentation
bin11011111001010…
…11111000110101
3121022100001102000
431330223320311
5434401342323
635115405513
75541033231
oct1574537065
9538301360
10234012213
11110103926
1266453899
1339635586
14231175c1
1515826e43
hexdf2be35

234012213 has 16 divisors (see below), whose sum is σ = 347548800. Its totient is φ = 155619360.

The previous prime is 234012197. The next prime is 234012217. The reversal of 234012213 is 312210432.

It is not a de Polignac number, because 234012213 - 24 = 234012197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234012217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448 + ... + 21638.

It is an arithmetic number, because the mean of its divisors is an integer number (21721800).

Almost surely, 2234012213 is an apocalyptic number.

It is an amenable number.

234012213 is a deficient number, since it is larger than the sum of its proper divisors (113536587).

234012213 is a wasteful number, since it uses less digits than its factorization.

234012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21609 (or 21603 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 234012213 is about 15297.4577299628. The cubic root of 234012213 is about 616.2347353062.

Adding to 234012213 its reverse (312210432), we get a palindrome (546222645).

The spelling of 234012213 in words is "two hundred thirty-four million, twelve thousand, two hundred thirteen".

Divisors: 1 3 9 27 409 1227 3681 11043 21191 63573 190719 572157 8667119 26001357 78004071 234012213