Search a number
-
+
257836055 = 51131373331
BaseRepresentation
bin11110101111001…
…00010000010111
3122222011102120112
433113210100113
51012001223210
641330153235
76250366421
oct1727442027
9588142515
10257836055
111225a6054
127242281b
1341557319
1426359811
1517980d05
hexf5e4417

257836055 has 16 divisors (see below), whose sum is σ = 314514144. Its totient is φ = 202890240.

The previous prime is 257836039. The next prime is 257836067. The reversal of 257836055 is 550638752.

It is not a de Polignac number, because 257836055 - 24 = 257836039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75740 + ... + 79070.

It is an arithmetic number, because the mean of its divisors is an integer number (19657134).

Almost surely, 2257836055 is an apocalyptic number.

257836055 is a deficient number, since it is larger than the sum of its proper divisors (56678089).

257836055 is a wasteful number, since it uses less digits than its factorization.

257836055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 257836055 is about 16057.2742082833. The cubic root of 257836055 is about 636.4748038349.

The spelling of 257836055 in words is "two hundred fifty-seven million, eight hundred thirty-six thousand, fifty-five".

Divisors: 1 5 113 137 565 685 3331 15481 16655 77405 376403 456347 1882015 2281735 51567211 257836055