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238826805 = 3572274541
BaseRepresentation
bin11100011110000…
…11010100110101
3121122101122210020
432033003110311
5442114424210
635410515353
75626665030
oct1617032465
9548348706
10238826805
111128a2128
1267b95b59
133a62cb49
1423a0c017
1515e78770
hexe3c3535

238826805 has 16 divisors (see below), whose sum is σ = 436712064. Its totient is φ = 109177920.

The previous prime is 238826801. The next prime is 238826807. The reversal of 238826805 is 508628832.

It is not a de Polignac number, because 238826805 - 22 = 238826801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238826801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137166 + ... + 1137375.

It is an arithmetic number, because the mean of its divisors is an integer number (27294504).

Almost surely, 2238826805 is an apocalyptic number.

It is an amenable number.

238826805 is a deficient number, since it is larger than the sum of its proper divisors (197885259).

238826805 is a wasteful number, since it uses less digits than its factorization.

238826805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274556.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 238826805 is about 15454.0222919472. The cubic root of 238826805 is about 620.4322384801.

The spelling of 238826805 in words is "two hundred thirty-eight million, eight hundred twenty-six thousand, eight hundred five".

Divisors: 1 3 5 7 15 21 35 105 2274541 6823623 11372705 15921787 34118115 47765361 79608935 238826805