Base | Representation |
---|---|
bin | 1011010100010011110… |
… | …00001011010000011001 |
3 | 1101011201100012000102202 |
4 | 11222021320023100121 |
5 | 22332341211331101 |
6 | 454350120535545 |
7 | 40044214454003 |
oct | 5521170132031 |
9 | 1334640160382 |
10 | 388860261401 |
11 | 13aa07530967 |
12 | 634446215b5 |
13 | 2a891798641 |
14 | 14b6c919373 |
15 | a1ad95536b |
hex | 5a89e0b419 |
388860261401 has 32 divisors (see below), whose sum is σ = 416716185600. Its totient is φ = 362010648384.
The previous prime is 388860261389. The next prime is 388860261403. The reversal of 388860261401 is 104162068883.
It is not a de Polignac number, because 388860261401 - 222 = 388856067097 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (47).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (388860261403) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251038775 + ... + 251040323.
It is an arithmetic number, because the mean of its divisors is an integer number (13022380800).
Almost surely, 2388860261401 is an apocalyptic number.
It is an amenable number.
388860261401 is a deficient number, since it is larger than the sum of its proper divisors (27855924199).
388860261401 is a wasteful number, since it uses less digits than its factorization.
388860261401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2765.
The product of its (nonzero) digits is 442368, while the sum is 47.
The spelling of 388860261401 in words is "three hundred eighty-eight billion, eight hundred sixty million, two hundred sixty-one thousand, four hundred one".
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