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238634208 = 25331791543
BaseRepresentation
bin11100011100101…
…00010011100000
3121122000212121000
432032110103200
5442042243313
635402432000
75625233361
oct1616242340
9548025530
10238634208
1111278045a
1267b02600
133a593297
142399bb68
1515e3b673
hexe3944e0

238634208 has 96 divisors (see below), whose sum is σ = 700358400. Its totient is φ = 79049088.

The previous prime is 238634203. The next prime is 238634237. The reversal of 238634208 is 802436832.

238634208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238634203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153885 + ... + 155427.

It is an arithmetic number, because the mean of its divisors is an integer number (7295400).

Almost surely, 2238634208 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 238634208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350179200).

238634208 is an abundant number, since it is smaller than the sum of its proper divisors (461724192).

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

238634208 is a wasteful number, since it uses less digits than its factorization.

238634208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 238634208 is about 15447.7897448146. The cubic root of 238634208 is about 620.2654153252.

The spelling of 238634208 in words is "two hundred thirty-eight million, six hundred thirty-four thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 179 216 288 358 432 537 716 864 1074 1432 1543 1611 2148 2864 3086 3222 4296 4629 4833 5728 6172 6444 8592 9258 9666 12344 12888 13887 17184 18516 19332 24688 25776 27774 37032 38664 41661 49376 51552 55548 74064 77328 83322 111096 148128 154656 166644 222192 276197 333288 444384 552394 666576 828591 1104788 1333152 1657182 2209576 2485773 3314364 4419152 4971546 6628728 7457319 8838304 9943092 13257456 14914638 19886184 26514912 29829276 39772368 59658552 79544736 119317104 238634208