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124342313 = 491253243
BaseRepresentation
bin1110110100101…
…01000000101001
322122222020120212
413122111000221
5223312423223
620201030505
73036615014
oct732250051
9278866525
10124342313
1164208247
1235785435
131c9b7544
141272a37b
15adb2278
hex7695029

124342313 has 4 divisors (see below), whose sum is σ = 124596048. Its totient is φ = 124088580.

The previous prime is 124342297. The next prime is 124342357. The reversal of 124342313 is 313243421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313243421 = 893519589.

It is a cyclic number.

It is not a de Polignac number, because 124342313 - 24 = 124342297 is a prime.

It is a super-3 number, since 3×1243423133 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124342363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126131 + ... + 127112.

It is an arithmetic number, because the mean of its divisors is an integer number (31149012).

Almost surely, 2124342313 is an apocalyptic number.

It is an amenable number.

124342313 is a deficient number, since it is larger than the sum of its proper divisors (253735).

124342313 is an equidigital number, since it uses as much as digits as its factorization.

124342313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253734.

The product of its digits is 1728, while the sum is 23.

The square root of 124342313 is about 11150.8884399406. Note that the first 3 decimals coincide. The cubic root of 124342313 is about 499.1215415253.

Adding to 124342313 its reverse (313243421), we get a palindrome (437585734).

The spelling of 124342313 in words is "one hundred twenty-four million, three hundred forty-two thousand, three hundred thirteen".

Divisors: 1 491 253243 124342313