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38709125020 = 22561127249833
BaseRepresentation
bin100100000011001111…
…100101111110011100
310200220201001021221001
4210003033211332130
51113234014000040
625441022520044
72540151063616
oct440317457634
9120821037831
1038709125020
1115464323615
127603736024
13385b7c0b07
141c32d83db6
1510184ea59a
hex9033e5f9c

38709125020 has 48 divisors (see below), whose sum is σ = 83272670208. Its totient is φ = 15109839360.

The previous prime is 38709125003. The next prime is 38709125023. The reversal of 38709125020 is 2052190783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38709125023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30024 + ... + 279856.

It is an arithmetic number, because the mean of its divisors is an integer number (1734847296).

Almost surely, 238709125020 is an apocalyptic number.

It is an amenable number.

38709125020 is an abundant number, since it is smaller than the sum of its proper divisors (44563545188).

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

38709125020 is a wasteful number, since it uses less digits than its factorization.

38709125020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250030 (or 250028 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 38709125020 in words is "thirty-eight billion, seven hundred nine million, one hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 61 122 127 244 254 305 508 610 635 1220 1270 2540 7747 15494 30988 38735 77470 154940 249833 499666 999332 1249165 2498330 4996660 15239813 30479626 31728791 60959252 63457582 76199065 126915164 152398130 158643955 304796260 317287910 634575820 1935456251 3870912502 7741825004 9677281255 19354562510 38709125020