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231862196 = 2257965549
BaseRepresentation
bin11011101000111…
…10111110110100
3121011021211010202
431310132332310
5433324042241
635001340032
75513540036
oct1564367664
9534254122
10231862196
11109975555
1265797618
1339061a87
1422b17c56
151554ed9b
hexdd1efb4

231862196 has 6 divisors (see below), whose sum is σ = 405758850. Its totient is φ = 115931096.

The previous prime is 231862151. The next prime is 231862199. The reversal of 231862196 is 691268132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117072400 + 114789796 = 10820^2 + 10714^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231862199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28982771 + ... + 28982778.

It is an arithmetic number, because the mean of its divisors is an integer number (67626475).

Almost surely, 2231862196 is an apocalyptic number.

It is an amenable number.

231862196 is a deficient number, since it is larger than the sum of its proper divisors (173896654).

231862196 is a wasteful number, since it uses less digits than its factorization.

231862196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57965553 (or 57965551 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 231862196 is about 15227.0219018691. The cubic root of 231862196 is about 614.3416808263.

The spelling of 231862196 in words is "two hundred thirty-one million, eight hundred sixty-two thousand, one hundred ninety-six".

Divisors: 1 2 4 57965549 115931098 231862196