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257104126 = 2976192141
BaseRepresentation
bin11110101001100…
…01100011111110
3122220210020120001
433110301203332
51011304313001
641302344514
76241230466
oct1724614376
9586706501
10257104126
11122146154
127212b13a
134135c126
1426208ba6
1517889001
hexf5318fe

257104126 has 16 divisors (see below), whose sum is σ = 390443760. Its totient is φ = 126961920.

The previous prime is 257104103. The next prime is 257104151. The reversal of 257104126 is 621401752.

It is a super-2 number, since 2×2571041262 = 132205063212447752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257104094 and 257104103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119016 + ... + 121156.

It is an arithmetic number, because the mean of its divisors is an integer number (24402735).

Almost surely, 2257104126 is an apocalyptic number.

257104126 is a deficient number, since it is larger than the sum of its proper divisors (133339634).

257104126 is a wasteful number, since it uses less digits than its factorization.

257104126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 257104126 is about 16034.4668137110. The cubic root of 257104126 is about 635.8719713153.

Adding to 257104126 its reverse (621401752), we get a palindrome (878505878).

The spelling of 257104126 in words is "two hundred fifty-seven million, one hundred four thousand, one hundred twenty-six".

Divisors: 1 2 97 194 619 1238 2141 4282 60043 120086 207677 415354 1325279 2650558 128552063 257104126