Search a number
-
+
828142240 = 2556078527
BaseRepresentation
bin110001010111000…
…111001010100000
32010201021222120211
4301113013022200
53144001022430
6214101543504
726344043602
oct6127071240
92121258524
10828142240
11395512582
121b1414b94
131027573c3
147bdb3172
154ca8572a
hex315c72a0

828142240 has 48 divisors (see below), whose sum is σ = 1959939072. Its totient is φ = 330672384.

The previous prime is 828142213. The next prime is 828142291. The reversal of 828142240 is 42241828.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92857 + ... + 101383.

It is an arithmetic number, because the mean of its divisors is an integer number (40832064).

Almost surely, 2828142240 is an apocalyptic number.

828142240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

828142240 is an abundant number, since it is smaller than the sum of its proper divisors (1131796832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828142240 is a wasteful number, since it uses less digits than its factorization.

828142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149 (or 9141 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 828142240 is about 28777.4606245930. The cubic root of 828142240 is about 939.0779550752.

The spelling of 828142240 in words is "eight hundred twenty-eight million, one hundred forty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 607 1214 2428 3035 4856 6070 8527 9712 12140 17054 19424 24280 34108 42635 48560 68216 85270 97120 136432 170540 272864 341080 682160 1364320 5175889 10351778 20703556 25879445 41407112 51758890 82814224 103517780 165628448 207035560 414071120 828142240