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38388259120 = 2453931122069
BaseRepresentation
bin100011110000000111…
…100101100100110000
310200002100021121122211
4203300013211210300
51112104343242440
625345121341504
72526203550541
oct436007454460
9120070247584
1038388259120
111530a198292
127534197894
13380a198733
141c024dc4c8
15eea268eea
hex8f01e5930

38388259120 has 40 divisors (see below), whose sum is σ = 89276138640. Its totient is φ = 15351271680.

The previous prime is 38388259069. The next prime is 38388259157. The reversal of 38388259120 is 2195288383.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253446 + ... + 375514.

It is an arithmetic number, because the mean of its divisors is an integer number (2231903466).

Almost surely, 238388259120 is an apocalyptic number.

It is an amenable number.

38388259120 is an abundant number, since it is smaller than the sum of its proper divisors (50887879520).

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

38388259120 is a wasteful number, since it uses less digits than its factorization.

38388259120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126013 (or 126007 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 38388259120 in words is "thirty-eight billion, three hundred eighty-eight million, two hundred fifty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3931 7862 15724 19655 31448 39310 62896 78620 122069 157240 244138 314480 488276 610345 976552 1220690 1953104 2441380 4882760 9765520 479853239 959706478 1919412956 2399266195 3838825912 4798532390 7677651824 9597064780 19194129560 38388259120