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254342123 = 7611035783
BaseRepresentation
bin11110010100011…
…11001111101011
3122201120220210122
433022033033223
51010102421443
641123233455
76205605140
oct1712171753
9581526718
10254342123
1112062a002
127121888b
1340902bc9
1425aca3c7
15174e0968
hexf28f3eb

254342123 has 16 divisors (see below), whose sum is σ = 298361856. Its totient is φ = 212315040.

The previous prime is 254342089. The next prime is 254342167. The reversal of 254342123 is 321243452.

It is not a de Polignac number, because 254342123 - 214 = 254325739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254342092 and 254342101.

It is not an unprimeable number, because it can be changed into a prime (254342173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41090 + ... + 46872.

It is an arithmetic number, because the mean of its divisors is an integer number (18647616).

Almost surely, 2254342123 is an apocalyptic number.

254342123 is a deficient number, since it is larger than the sum of its proper divisors (44019733).

254342123 is a wasteful number, since it uses less digits than its factorization.

254342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954.

The product of its digits is 5760, while the sum is 26.

The square root of 254342123 is about 15948.1071917642. The cubic root of 254342123 is about 633.5867659483.

Adding to 254342123 its reverse (321243452), we get a palindrome (575585575).

The spelling of 254342123 in words is "two hundred fifty-four million, three hundred forty-two thousand, one hundred twenty-three".

Divisors: 1 7 61 103 427 721 5783 6283 40481 43981 352763 595649 2469341 4169543 36334589 254342123