Search a number
-
+
268147408 = 2447356579
BaseRepresentation
bin11111111101110…
…01101011010000
3200200120022002111
433332321223100
51022121204113
642335155104
76434133604
oct1776715320
9620508074
10268147408
111283a9131
1275975a94
1343727809
1427881504
151881b13d
hexffb9ad0

268147408 has 20 divisors (see below), whose sum is σ = 530591040. Its totient is φ = 131220704.

The previous prime is 268147393. The next prime is 268147417. The reversal of 268147408 is 804741862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177538 + ... + 179041.

It is an arithmetic number, because the mean of its divisors is an integer number (26529552).

Almost surely, 2268147408 is an apocalyptic number.

It is an amenable number.

268147408 is a deficient number, since it is larger than the sum of its proper divisors (262443632).

268147408 is a wasteful number, since it uses less digits than its factorization.

268147408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356634 (or 356628 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 268147408 is about 16375.2071131940. The cubic root of 268147408 is about 644.8487580811.

The spelling of 268147408 in words is "two hundred sixty-eight million, one hundred forty-seven thousand, four hundred eight".

Divisors: 1 2 4 8 16 47 94 188 376 752 356579 713158 1426316 2852632 5705264 16759213 33518426 67036852 134073704 268147408