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238550994 = 23411263509
BaseRepresentation
bin11100011011111…
…11111111010010
3121121212122110000
432031333333102
5442032112434
635400550430
75624435643
oct1615777722
9547778400
10238550994
11112723990
1267a82416
133a564446
14239796ca
1515e21b99
hexe37ffd2

238550994 has 80 divisors (see below), whose sum is σ = 586491840. Its totient is φ = 71871840.

The previous prime is 238550993. The next prime is 238550999. The reversal of 238550994 is 499055832.

238550994 is a `hidden beast` number, since 2 + 3 + 8 + 550 + 9 + 94 = 666.

It is not an unprimeable number, because it can be changed into a prime (238550993) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 468412 + ... + 468920.

It is an arithmetic number, because the mean of its divisors is an integer number (7331148).

Almost surely, 2238550994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238550994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293245920).

238550994 is an abundant number, since it is smaller than the sum of its proper divisors (347940846).

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

238550994 is a wasteful number, since it uses less digits than its factorization.

238550994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 238550994 is about 15445.0961149486. The cubic root of 238550994 is about 620.1933094756.

The spelling of 238550994 in words is "two hundred thirty-eight million, five hundred fifty thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 263 297 509 526 594 789 891 1018 1527 1578 1782 2367 2893 3054 4581 4734 5599 5786 7101 8679 9162 11198 13743 14202 16797 17358 21303 26037 27486 33594 41229 42606 50391 52074 78111 82458 100782 133867 151173 156222 234333 267734 302346 401601 453519 468666 803202 907038 1204803 1472537 2409606 2945074 3614409 4417611 7228818 8835222 10843227 13252833 21686454 26505666 39758499 79516998 119275497 238550994