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238920441 = 3315943543
BaseRepresentation
bin11100011110110…
…10001011111001
3121122120102020020
432033122023321
5442130423231
635412521053
75630535024
oct1617321371
9548512206
10238920441
11112956511
1268020189
133a663656
1423a341bb
1515e96396
hexe3da2f9

238920441 has 16 divisors (see below), whose sum is σ = 334417920. Its totient is φ = 151526160.

The previous prime is 238920419. The next prime is 238920443. The reversal of 238920441 is 144029832.

It is not a de Polignac number, because 238920441 - 213 = 238912249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238920443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16285 + ... + 27258.

It is an arithmetic number, because the mean of its divisors is an integer number (20901120).

Almost surely, 2238920441 is an apocalyptic number.

It is an amenable number.

238920441 is a deficient number, since it is larger than the sum of its proper divisors (95497479).

238920441 is a wasteful number, since it uses less digits than its factorization.

238920441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43636.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 238920441 is about 15457.0514976175. The cubic root of 238920441 is about 620.5133114602.

The spelling of 238920441 in words is "two hundred thirty-eight million, nine hundred twenty thousand, four hundred forty-one".

Divisors: 1 3 31 59 93 177 1829 5487 43543 130629 1349833 2569037 4049499 7707111 79640147 238920441