Search a number
-
+
257953046 = 21331320041
BaseRepresentation
bin11110110000000…
…00110100010110
3122222101101001112
433120000310112
51012013444141
641332455022
76251364461
oct1730006426
9588341045
10257953046
11122675a3a
127247a472
1341598650
142638a2d8
15179a57eb
hexf600d16

257953046 has 16 divisors (see below), whose sum is σ = 430136448. Its totient is φ = 115214400.

The previous prime is 257953021. The next prime is 257953093. The reversal of 257953046 is 640359752.

It is a junction number, because it is equal to n+sod(n) for n = 257952994 and 257953012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159215 + ... + 160826.

It is an arithmetic number, because the mean of its divisors is an integer number (26883528).

Almost surely, 2257953046 is an apocalyptic number.

257953046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

257953046 is a deficient number, since it is larger than the sum of its proper divisors (172183402).

257953046 is a wasteful number, since it uses less digits than its factorization.

257953046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320087.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 257953046 is about 16060.9167235248. The cubic root of 257953046 is about 636.5710543566.

The spelling of 257953046 in words is "two hundred fifty-seven million, nine hundred fifty-three thousand, forty-six".

Divisors: 1 2 13 26 31 62 403 806 320041 640082 4160533 8321066 9921271 19842542 128976523 257953046