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38658648 = 2337271463
BaseRepresentation
bin1001001101111…
…0001001011000
32200202001200210
42103132021120
534344034043
63500331120
7646410300
oct223361130
980661623
1038658648
111a9048a6
1210b43aa0
138017152
1451c4600
1535d9633
hex24de258

38658648 has 96 divisors (see below), whose sum is σ = 114255360. Its totient is φ = 10866240.

The previous prime is 38658619. The next prime is 38658691. The reversal of 38658648 is 84685683.

It is a junction number, because it is equal to n+sod(n) for n = 38658597 and 38658606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83265 + ... + 83727.

It is an arithmetic number, because the mean of its divisors is an integer number (1190160).

Almost surely, 238658648 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 38658648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57127680).

38658648 is an abundant number, since it is smaller than the sum of its proper divisors (75596712).

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

38658648 is a wasteful number, since it uses less digits than its factorization.

38658648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 546 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 38658648 is about 6217.6079001494. The cubic root of 38658648 is about 338.1288445915.

The spelling of 38658648 in words is "thirty-eight million, six hundred fifty-eight thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 71 84 98 142 147 168 196 213 284 294 392 426 463 497 568 588 852 926 994 1176 1389 1491 1704 1852 1988 2778 2982 3241 3479 3704 3976 5556 5964 6482 6958 9723 10437 11112 11928 12964 13916 19446 20874 22687 25928 27832 32873 38892 41748 45374 65746 68061 77784 83496 90748 98619 131492 136122 181496 197238 230111 262984 272244 394476 460222 544488 690333 788952 920444 1380666 1610777 1840888 2761332 3221554 4832331 5522664 6443108 9664662 12886216 19329324 38658648