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238485408 = 2537367967
BaseRepresentation
bin11100011011011…
…11111110100000
3121121202022110220
432031233332200
5442023013113
635355323040
75624043510
oct1615577640
9547668426
10238485408
11112689687
1267a50480
133a540635
142395d840
1515e0c523
hexe36ffa0

238485408 has 96 divisors (see below), whose sum is σ = 718147584. Its totient is φ = 67882752.

The previous prime is 238485407. The next prime is 238485421. The reversal of 238485408 is 804584832.

It is a happy number.

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

It is a super-3 number, since 3×2384854083 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 238485408.

It is not an unprimeable number, because it can be changed into a prime (238485407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246141 + ... + 247107.

It is an arithmetic number, because the mean of its divisors is an integer number (7480704).

Almost surely, 2238485408 is an apocalyptic number.

238485408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238485408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359073792).

238485408 is an abundant number, since it is smaller than the sum of its proper divisors (479662176).

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

238485408 is a wasteful number, since it uses less digits than its factorization.

238485408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 238485408 is about 15442.9727708107. The cubic root of 238485408 is about 620.1364666653.

The spelling of 238485408 in words is "two hundred thirty-eight million, four hundred eighty-five thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 367 672 734 967 1101 1468 1934 2202 2569 2901 2936 3868 4404 5138 5802 5872 6769 7707 7736 8808 10276 11604 11744 13538 15414 15472 17616 20307 20552 23208 27076 30828 30944 35232 40614 41104 46416 54152 61656 81228 82208 92832 108304 123312 162456 216608 246624 324912 354889 649824 709778 1064667 1419556 2129334 2484223 2839112 4258668 4968446 5678224 7452669 8517336 9936892 11356448 14905338 17034672 19873784 29810676 34069344 39747568 59621352 79495136 119242704 238485408