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238481829845 = 57191991802107
BaseRepresentation
bin1101111000011010011…
…1111110111111010101
3211210120012122012001122
43132012213332333111
512401402322023340
6301320153133325
723141542051520
oct3360647767725
9753505565048
10238481829845
1192159859566
123a2770ba245
13196479b9bac
14b784bb9bb7
15630ba22db5
hex37869fefd5

238481829845 has 32 divisors (see below), whose sum is σ = 346004736000. Its totient is φ = 154144938816.

The previous prime is 238481829821. The next prime is 238481829863. The reversal of 238481829845 is 548928184832.

It is a cyclic number.

It is not a de Polignac number, because 238481829845 - 220 = 238480781269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 768719 + ... + 1033388.

It is an arithmetic number, because the mean of its divisors is an integer number (10812648000).

Almost surely, 2238481829845 is an apocalyptic number.

It is an amenable number.

238481829845 is a deficient number, since it is larger than the sum of its proper divisors (107522906155).

238481829845 is a wasteful number, since it uses less digits than its factorization.

238481829845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802337.

The product of its digits is 35389440, while the sum is 62.

The spelling of 238481829845 in words is "two hundred thirty-eight billion, four hundred eighty-one million, eight hundred twenty-nine thousand, eight hundred forty-five".

Divisors: 1 5 7 19 35 95 133 199 665 995 1393 3781 6965 18905 26467 132335 1802107 9010535 12614749 34240033 63073745 171200165 239680231 358619293 1198401155 1793096465 2510335051 6813766567 12551675255 34068832835 47696365969 238481829845