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124342831 is a prime number
BaseRepresentation
bin1110110100101…
…01001000101111
322122222021022001
413122111020233
5223312432311
620201033131
73036616354
oct732251057
9278867261
10124342831
1164208678
12357857a7
131c9b7852
141272a62b
15adb24c1
hex769522f

124342831 has 2 divisors, whose sum is σ = 124342832. Its totient is φ = 124342830.

The previous prime is 124342819. The next prime is 124342847. The reversal of 124342831 is 138243421.

It is a weak prime.

It is an emirp because it is prime and its reverse (138243421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124342831 - 27 = 124342703 is a prime.

It is a super-2 number, since 2×1243428312 = 30922279242189122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124342831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124342931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62171415 + 62171416.

It is an arithmetic number, because the mean of its divisors is an integer number (62171416).

Almost surely, 2124342831 is an apocalyptic number.

124342831 is a deficient number, since it is larger than the sum of its proper divisors (1).

124342831 is an equidigital number, since it uses as much as digits as its factorization.

124342831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 124342831 is about 11150.9116667652. The cubic root of 124342831 is about 499.1222346243.

The spelling of 124342831 in words is "one hundred twenty-four million, three hundred forty-two thousand, eight hundred thirty-one".