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38680824 = 23371389199
BaseRepresentation
bin1001001110001…
…1100011111000
32200210012010010
42103203203320
534400241244
63501021520
7646532040
oct223434370
980705103
1038680824
111a91a526
1210b548a0
138024280
1451cc720
1535e0eb9
hex24e38f8

38680824 has 128 divisors (see below), whose sum is σ = 120960000. Its totient is φ = 10036224.

The previous prime is 38680819. The next prime is 38680841. The reversal of 38680824 is 42808683.

38680824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×386808242 = 2992412290637952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194277 + ... + 194475.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 238680824 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 38680824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60480000).

38680824 is an abundant number, since it is smaller than the sum of its proper divisors (82279176).

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

38680824 is a wasteful number, since it uses less digits than its factorization.

38680824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 38680824 is about 6219.3909669677. The cubic root of 38680824 is about 338.1934865481.

The spelling of 38680824 in words is "thirty-eight million, six hundred eighty thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 89 91 104 156 168 178 182 199 267 273 312 356 364 398 534 546 597 623 712 728 796 1068 1092 1157 1194 1246 1393 1592 1869 2136 2184 2314 2388 2492 2587 2786 3471 3738 4179 4628 4776 4984 5174 5572 6942 7476 7761 8099 8358 9256 10348 11144 13884 14952 15522 16198 16716 17711 18109 20696 24297 27768 31044 32396 33432 35422 36218 48594 53133 54327 62088 64792 70844 72436 97188 106266 108654 123977 141688 144872 194376 212532 217308 230243 247954 371931 425064 434616 460486 495908 690729 743862 920972 991816 1381458 1487724 1611701 1841944 2762916 2975448 3223402 4835103 5525832 6446804 9670206 12893608 19340412 38680824