Base | Representation |
---|---|
bin | 100011100010100110… |
… | …000101011100010110 |
3 | 10122111112100121100100 |
4 | 203202212011130112 |
5 | 1111123302413300 |
6 | 25310414354530 |
7 | 2520450214041 |
oct | 434246053426 |
9 | 118445317310 |
10 | 38161372950 |
11 | 15203111358 |
12 | 74901bba46 |
13 | 37a218986c |
14 | 1bc031bc58 |
15 | ed539d700 |
hex | 8e2985716 |
38161372950 has 144 divisors (see below), whose sum is σ = 103315240080. Its totient is φ = 10098466560.
The previous prime is 38161372943. The next prime is 38161372981. The reversal of 38161372950 is 5927316183.
38161372950 is a `hidden beast` number, since 3 + 8 + 1 + 613 + 7 + 29 + 5 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a junction number, because it is equal to n+sod(n) for n = 38161372896 and 38161372905.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56368012 + ... + 56368688.
It is an arithmetic number, because the mean of its divisors is an integer number (717466945).
Almost surely, 238161372950 is an apocalyptic number.
38161372950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 38161372950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51657620040).
38161372950 is an abundant number, since it is smaller than the sum of its proper divisors (65153867130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38161372950 is a wasteful number, since it uses less digits than its factorization.
38161372950 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1471 (or 1463 counting only the distinct ones).
The product of its (nonzero) digits is 272160, while the sum is 45.
The spelling of 38161372950 in words is "thirty-eight billion, one hundred sixty-one million, three hundred seventy-two thousand, nine hundred fifty".
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