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38388385190 = 2561167376837
BaseRepresentation
bin100011110000001000…
…000100010110100110
310200002100112000121002
4203300020010112212
51112104411311230
625345124153302
72526204614231
oct436010042646
9120070460532
1038388385190
111530a273a81
127534238832
13380a210c2c
141c02532418
15eea291545
hex8f02045a6

38388385190 has 32 divisors (see below), whose sum is σ = 70652602944. Its totient is φ = 15013146240.

The previous prime is 38388385169. The next prime is 38388385193. The reversal of 38388385190 is 9158388383.

It is a super-2 number, since 2×383883851902 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38388385193) 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 15 ways as a sum of consecutive naturals, for example, 86549 + ... + 290288.

It is an arithmetic number, because the mean of its divisors is an integer number (2207893842).

Almost surely, 238388385190 is an apocalyptic number.

38388385190 is a deficient number, since it is larger than the sum of its proper divisors (32264217754).

38388385190 is a wasteful number, since it uses less digits than its factorization.

38388385190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377072.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 38388385190 in words is "thirty-eight billion, three hundred eighty-eight million, three hundred eighty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 61 122 167 305 334 610 835 1670 10187 20374 50935 101870 376837 753674 1884185 3768370 22987057 45974114 62931779 114935285 125863558 229870570 314658895 629317790 3838838519 7677677038 19194192595 38388385190