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238985079629 = 6732091111543
BaseRepresentation
bin1101111010010010011…
…1101110101101001101
3211211212021120220222112
43132210213232231031
512403420140022004
6301442131353405
723160162442202
oct3364447565515
9754767526875
10238985079629
119239793557a
123a397752865
13196c803c22a
14b7d1979ca9
15633accde6e
hex37a49eeb4d

238985079629 has 8 divisors (see below), whose sum is σ = 242627824320. Its totient is φ = 235344564576.

The previous prime is 238985079623. The next prime is 238985079649. The reversal of 238985079629 is 926970589832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-238985079629 is a prime.

It is a super-2 number, since 2×2389850796292 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238985079623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340769 + ... + 770774.

It is an arithmetic number, because the mean of its divisors is an integer number (30328478040).

Almost surely, 2238985079629 is an apocalyptic number.

It is an amenable number.

238985079629 is a deficient number, since it is larger than the sum of its proper divisors (3642744691).

238985079629 is a wasteful number, since it uses less digits than its factorization.

238985079629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114819.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 238985079629 in words is "two hundred thirty-eight billion, nine hundred eighty-five million, seventy-nine thousand, six hundred twenty-nine".

Divisors: 1 67 3209 215003 1111543 74473381 3566941487 238985079629