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255400523 = 746378803
BaseRepresentation
bin11110011100100…
…01101001001011
3122210120200122122
433032101221023
51010340304043
641202041455
76220603640
oct1716215113
9583520578
10255400523
11121192214
127164928b
1340bb3891
1425cc3dc7
151764e368
hexf391a4b

255400523 has 8 divisors (see below), whose sum is σ = 292520448. Its totient is φ = 218439144.

The previous prime is 255400517. The next prime is 255400559. The reversal of 255400523 is 325004552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255400523 - 24 = 255400507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255400492 and 255400501.

It is not an unprimeable number, because it can be changed into a prime (255400513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36161 + ... + 42642.

It is an arithmetic number, because the mean of its divisors is an integer number (36565056).

Almost surely, 2255400523 is an apocalyptic number.

255400523 is a deficient number, since it is larger than the sum of its proper divisors (37119925).

255400523 is an equidigital number, since it uses as much as digits as its factorization.

255400523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79273.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 255400523 is about 15981.2553637066. The cubic root of 255400523 is about 634.4644029821.

The spelling of 255400523 in words is "two hundred fifty-five million, four hundred thousand, five hundred twenty-three".

Divisors: 1 7 463 3241 78803 551621 36485789 255400523