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38868970 = 2571789367
BaseRepresentation
bin1001010001000…
…1011111101010
32201010202012111
42110101133222
534422301340
63505032534
7651244420
oct224213752
981122174
1038868970
111aa38918
121102574a
13808baba
14523b110
15362baea
hex25117ea

38868970 has 64 divisors (see below), whose sum is σ = 85847040. Its totient is φ = 12367872.

The previous prime is 38868913. The next prime is 38868971. The reversal of 38868970 is 7986883.

It is a happy number.

38868970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38868971) by changing a digit.

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, 105727 + ... + 106093.

It is an arithmetic number, because the mean of its divisors is an integer number (1341360).

Almost surely, 238868970 is an apocalyptic number.

38868970 is an abundant number, since it is smaller than the sum of its proper divisors (46978070).

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

38868970 is a wasteful number, since it uses less digits than its factorization.

38868970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 38868970 is about 6234.4983759722. The cubic root of 38868970 is about 338.7409314802.

The spelling of 38868970 in words is "thirty-eight million, eight hundred sixty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 89 119 170 178 238 367 445 595 623 734 890 1190 1246 1513 1835 2569 3026 3115 3670 5138 6230 6239 7565 10591 12478 12845 15130 21182 25690 31195 32663 43673 52955 62390 65326 87346 105910 163315 218365 228641 326630 436730 457282 555271 1110542 1143205 2286410 2776355 3886897 5552710 7773794 19434485 38868970