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236428808 = 23711383813
BaseRepresentation
bin11100001011110…
…01111000001000
3121110212211100112
432011321320020
5441011210213
635243253452
75600416550
oct1605717010
9543784315
10236428808
11111504510
126721a288
1339ca0505
1423586160
1515b52ea8
hexe179e08

236428808 has 32 divisors (see below), whose sum is σ = 552692160. Its totient is φ = 92114880.

The previous prime is 236428807. The next prime is 236428811. The reversal of 236428808 is 808824632.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (236428807) by changing a digit.

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, 191291 + ... + 192522.

It is an arithmetic number, because the mean of its divisors is an integer number (17271630).

Almost surely, 2236428808 is an apocalyptic number.

236428808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

236428808 is an abundant number, since it is smaller than the sum of its proper divisors (316263352).

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

236428808 is a wasteful number, since it uses less digits than its factorization.

236428808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383837 (or 383833 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 236428808 is about 15376.2416734389. The cubic root of 236428808 is about 618.3487172878.

The spelling of 236428808 in words is "two hundred thirty-six million, four hundred twenty-eight thousand, eight hundred eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 383813 767626 1535252 2686691 3070504 4221943 5373382 8443886 10746764 16887772 21493528 29553601 33775544 59107202 118214404 236428808