Search a number
-
+
255133081449 = 34561232
BaseRepresentation
bin1110110110011100011…
…1011101111101101001
3220101112122220102010000
43231213013131331221
513140003032101244
6313112335213213
724301302260541
oct3554707357551
9811478812100
10255133081449
1199223a78324
1241543677209
131b09c6749ac
14c4c4436321
1569837ac169
hex3b671ddf69

255133081449 has 15 divisors (see below), whose sum is σ = 381131517613. Its totient is φ = 170085690324.

The previous prime is 255133081417. The next prime is 255133081459. The reversal of 255133081449 is 944180331552.

The square root of 255133081449 is 505107.

It is a perfect power (a square), and thus also a powerful number.

255133081449 is a `hidden beast` number, since 25 + 513 + 30 + 81 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 255133081449 - 25 = 255133081417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255133081459) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4517902 + ... + 4574024.

Almost surely, 2255133081449 is an apocalyptic number.

255133081449 is the 505107-th square number.

255133081449 is the 252554-th centered octagonal number.

It is an amenable number.

255133081449 is a deficient number, since it is larger than the sum of its proper divisors (125998436164).

255133081449 is an frugal number, since it uses more digits than its factorization.

255133081449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112258 (or 56126 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 255133081449 in words is "two hundred fifty-five billion, one hundred thirty-three million, eighty-one thousand, four hundred forty-nine".

Divisors: 1 3 9 27 81 56123 168369 505107 1515321 4545963 3149791129 9449373387 28348120161 85044360483 255133081449