Base | Representation |
---|---|
bin | 10001011101001110101110… |
… | …01000110101100001001011 |
3 | 12000220211110001111210002212 |
4 | 20232213113020311201023 |
5 | 20012421033412022110 |
6 | 213351025232415335 |
7 | 11041264534263164 |
oct | 1056472710654113 |
9 | 160824401453085 |
10 | 38387732142155 |
11 | 112601670344a0 |
12 | 437b9719a754b |
13 | 1855c41b84156 |
14 | 969d947a676b |
15 | 468846606e05 |
hex | 22e9d723584b |
38387732142155 has 32 divisors (see below), whose sum is σ = 53209627688448. Its totient is φ = 26275830105600.
The previous prime is 38387732142101. The next prime is 38387732142157. The reversal of 38387732142155 is 55124123778383.
It is a happy number.
38387732142155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 38387732142155 - 212 = 38387732138059 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 38387732142094 and 38387732142103.
It is not an unprimeable number, because it can be changed into a prime (38387732142157) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154808420 + ... + 155056190.
It is an arithmetic number, because the mean of its divisors is an integer number (1662800865264).
Almost surely, 238387732142155 is an apocalyptic number.
38387732142155 is a deficient number, since it is larger than the sum of its proper divisors (14821895546293).
38387732142155 is a wasteful number, since it uses less digits than its factorization.
38387732142155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 413507.
The product of its digits is 33868800, while the sum is 59.
The spelling of 38387732142155 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred thirty-two million, one hundred forty-two thousand, one hundred fifty-five".
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