Base | Representation |
---|---|
bin | 100011101111000011… |
… | …101011001101100101 |
3 | 10200001002210010221121 |
4 | 203233003223031211 |
5 | 1112040314101141 |
6 | 25343244013541 |
7 | 2525566332613 |
oct | 435703531545 |
9 | 120032703847 |
10 | 38370456421 |
11 | 15300138910 |
12 | 752a2312b1 |
13 | 38065a44ab |
14 | 1bdddc66b3 |
15 | ee88ee1d1 |
hex | 8ef0eb365 |
38370456421 has 16 divisors (see below), whose sum is σ = 42759198720. Its totient is φ = 34137108720.
The previous prime is 38370456413. The next prime is 38370456437. The reversal of 38370456421 is 12465407383.
It is not a de Polignac number, because 38370456421 - 23 = 38370456413 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38370456461) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12166 + ... + 277288.
It is an arithmetic number, because the mean of its divisors is an integer number (2672449920).
Almost surely, 238370456421 is an apocalyptic number.
It is an amenable number.
38370456421 is a deficient number, since it is larger than the sum of its proper divisors (4388742299).
38370456421 is a wasteful number, since it uses less digits than its factorization.
38370456421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 265416.
The product of its (nonzero) digits is 483840, while the sum is 43.
The spelling of 38370456421 in words is "thirty-eight billion, three hundred seventy million, four hundred fifty-six thousand, four hundred twenty-one".
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