Base | Representation |
---|---|
bin | 100011011010101101… |
… | …101101011010001011 |
3 | 10122011022120011221122 |
4 | 203122231231122023 |
5 | 1110340430411211 |
6 | 25245332425455 |
7 | 2514253321616 |
oct | 433255553213 |
9 | 118138504848 |
10 | 38029153931 |
11 | 1514551423a |
12 | 7453a7828b |
13 | 3780975062 |
14 | 1baa94117d |
15 | ec89826db |
hex | 8dab6d68b |
38029153931 has 4 divisors (see below), whose sum is σ = 39255900864. Its totient is φ = 36802407000.
The previous prime is 38029153913. The next prime is 38029153937. The reversal of 38029153931 is 13935192083.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 38029153931 - 234 = 20849284747 is a prime.
It is a super-2 number, since 2×380291539312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38029153937) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613373420 + ... + 613373481.
It is an arithmetic number, because the mean of its divisors is an integer number (9813975216).
Almost surely, 238029153931 is an apocalyptic number.
38029153931 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
38029153931 is a deficient number, since it is larger than the sum of its proper divisors (1226746933).
38029153931 is a wasteful number, since it uses less digits than its factorization.
38029153931 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1226746932.
The product of its (nonzero) digits is 174960, while the sum is 44.
The spelling of 38029153931 in words is "thirty-eight billion, twenty-nine million, one hundred fifty-three thousand, nine hundred thirty-one".
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