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38447068 = 22113171397
BaseRepresentation
bin1001001010101…
…0011111011100
32200100022110111
42102222133130
534320301233
63452015404
7644536402
oct222523734
980308414
1038447068
111a77a940
1210a61564
137c71a5a
14516b472
153596acd
hex24aa7dc

38447068 has 48 divisors (see below), whose sum is σ = 77027328. Its totient is φ = 16632000.

The previous prime is 38447063. The next prime is 38447093. The reversal of 38447068 is 86074483.

It is a self number, because there is not a number n which added to its sum of digits gives 38447068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38447063) 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, 96646 + ... + 97042.

It is an arithmetic number, because the mean of its divisors is an integer number (1604736).

It is a vampire number, since it can be written as 43678804 (with its own digits).

Almost surely, 238447068 is an apocalyptic number.

It is an amenable number.

38447068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

38447068 is a wasteful number, since it uses less digits than its factorization.

38447068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 38447068 is about 6200.5699738008. The cubic root of 38447068 is about 337.5108525088.

The spelling of 38447068 in words is "thirty-eight million, four hundred forty-seven thousand, sixty-eight".

Divisors: 1 2 4 11 22 31 44 62 71 124 142 284 341 397 682 781 794 1364 1562 1588 2201 3124 4367 4402 8734 8804 12307 17468 24211 24614 28187 48422 49228 56374 96844 112748 135377 270754 310057 541508 620114 873797 1240228 1747594 3495188 9611767 19223534 38447068