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235256420 = 22572373061
BaseRepresentation
bin11100000010110…
…11101001100100
3121101200021010202
432001123221210
5440211201140
635202210032
75554434530
oct1601335144
9541607122
10235256420
111108836a3
1266953918
133997c9a9
142335cbc0
15159c0915
hexe05ba64

235256420 has 48 divisors (see below), whose sum is σ = 589171968. Its totient is φ = 77151360.

The previous prime is 235256369. The next prime is 235256431. The reversal of 235256420 is 24652532.

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 15 ways as a sum of consecutive naturals, for example, 33311 + ... + 39750.

It is an arithmetic number, because the mean of its divisors is an integer number (12274416).

Almost surely, 2235256420 is an apocalyptic number.

235256420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235256420 is an abundant number, since it is smaller than the sum of its proper divisors (353915548).

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

235256420 is a wasteful number, since it uses less digits than its factorization.

235256420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73100 (or 73098 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 235256420 is about 15338.0709347688. The cubic root of 235256420 is about 617.3249472380.

The spelling of 235256420 in words is "two hundred thirty-five million, two hundred fifty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 73061 146122 292244 365305 511427 730610 1022854 1461220 1680403 2045708 2557135 3360806 5114270 6721612 8402015 10228540 11762821 16804030 23525642 33608060 47051284 58814105 117628210 235256420