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234087213 = 3476771349
BaseRepresentation
bin11011111001111…
…10001100101101
3121022110212021210
431330332030231
5434411242323
635121145033
75541465003
oct1574761455
9538425253
10234087213
11110155208
126648b179
1339660759
1423136a73
151583e293
hexdf3e32d

234087213 has 32 divisors (see below), whose sum is σ = 329011200. Its totient is φ = 147913920.

The previous prime is 234087211. The next prime is 234087221. The reversal of 234087213 is 312780432.

It is not a de Polignac number, because 234087213 - 21 = 234087211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234087211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 670563 + ... + 670911.

It is an arithmetic number, because the mean of its divisors is an integer number (10281600).

Almost surely, 2234087213 is an apocalyptic number.

It is an amenable number.

234087213 is a deficient number, since it is larger than the sum of its proper divisors (94923987).

234087213 is a wasteful number, since it uses less digits than its factorization.

234087213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 234087213 is about 15299.9089212975. The cubic root of 234087213 is about 616.3005618827.

The spelling of 234087213 in words is "two hundred thirty-four million, eighty-seven thousand, two hundred thirteen".

Divisors: 1 3 47 67 71 141 201 213 349 1047 3149 3337 4757 9447 10011 14271 16403 23383 24779 49209 70149 74337 223579 670737 1099001 1164613 1660193 3297003 3493839 4980579 78029071 234087213