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238413312 = 2932311669
BaseRepresentation
bin11100011010111…
…10011000000000
3121121121122120200
432031132120000
5442013211222
635354005200
75623323354
oct1615363000
9547548520
10238413312
1111263a4a5
1267a16800
133a516887
1423941464
1515de5eac
hexe35e600

238413312 has 120 divisors (see below), whose sum is σ = 710698560. Its totient is φ = 76861440.

The previous prime is 238413299. The next prime is 238413313. The reversal of 238413312 is 213314832.

238413312 is a `hidden beast` number, since 238 + 413 + 3 + 12 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238413313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142014 + ... + 143682.

It is an arithmetic number, because the mean of its divisors is an integer number (5922488).

Almost surely, 2238413312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238413312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355349280).

238413312 is an abundant number, since it is smaller than the sum of its proper divisors (472285248).

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

238413312 is a wasteful number, since it uses less digits than its factorization.

238413312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1705 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 238413312 is about 15440.6383287738. The cubic root of 238413312 is about 620.0739696693.

The spelling of 238413312 in words is "two hundred thirty-eight million, four hundred thirteen thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 128 144 186 192 248 256 279 288 372 384 496 512 558 576 744 768 992 1116 1152 1488 1536 1669 1984 2232 2304 2976 3338 3968 4464 4608 5007 5952 6676 7936 8928 10014 11904 13352 15021 15872 17856 20028 23808 26704 30042 35712 40056 47616 51739 53408 60084 71424 80112 103478 106816 120168 142848 155217 160224 206956 213632 240336 310434 320448 413912 427264 465651 480672 620868 640896 827824 854528 931302 961344 1241736 1281792 1655648 1862604 1922688 2483472 2563584 3311296 3725208 3845376 4966944 6622592 7450416 7690752 9933888 13245184 14900832 19867776 26490368 29801664 39735552 59603328 79471104 119206656 238413312