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238332220 = 22571702373
BaseRepresentation
bin11100011010010…
…10100100111100
3121121110112100021
432031022210330
5442003112340
635352141524
75622535060
oct1615124474
9547415307
10238332220
11112594585
12679978a4
133a4b89a9
142391daa0
1515dcbe4a
hexe34a93c

238332220 has 24 divisors (see below), whose sum is σ = 571997664. Its totient is φ = 81713856.

The previous prime is 238332203. The next prime is 238332229. The reversal of 238332220 is 22233832.

238332220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238332229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851047 + ... + 851326.

It is an arithmetic number, because the mean of its divisors is an integer number (23833236).

Almost surely, 2238332220 is an apocalyptic number.

238332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238332220 is an abundant number, since it is smaller than the sum of its proper divisors (333665444).

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

238332220 is a wasteful number, since it uses less digits than its factorization.

238332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702389 (or 1702387 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 238332220 is about 15438.0121777384. The cubic root of 238332220 is about 620.0036593610.

The spelling of 238332220 in words is "two hundred thirty-eight million, three hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1702373 3404746 6809492 8511865 11916611 17023730 23833222 34047460 47666444 59583055 119166110 238332220