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124270 = 2517243
BaseRepresentation
bin11110010101101110
320022110121
4132111232
512434040
62355154
71025206
oct362556
9208417
10124270
1185403
125baba
1344743
1433406
1526c4a
hex1e56e

124270 has 24 divisors (see below), whose sum is σ = 243144. Its totient is φ = 45696.

The previous prime is 124249. The next prime is 124277. The reversal of 124270 is 72421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124277) by changing a digit.

124270 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2869 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (10131).

2124270 is an apocalyptic number.

124270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124270 is a deficient number, since it is larger than the sum of its proper divisors (118874).

124270 is a wasteful number, since it uses less digits than its factorization.

124270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 124270 is about 352.5195030066. The cubic root of 124270 is about 49.9024765740.

Adding to 124270 its reverse (72421), we get a palindrome (196691).

The spelling of 124270 in words is "one hundred twenty-four thousand, two hundred seventy", and thus it is an iban number.

Divisors: 1 2 5 10 17 34 43 85 86 170 215 289 430 578 731 1445 1462 2890 3655 7310 12427 24854 62135 124270