Base | Representation |
---|---|
bin | 1000000101111010101… |
… | …11110110011011100111 |
3 | 222120201010122012211110 |
4 | 10002331113312123213 |
5 | 14023424043144111 |
6 | 331423044440103 |
7 | 26042314645200 |
oct | 4027527663347 |
9 | 876633565743 |
10 | 278055053031 |
11 | a7a16912898 |
12 | 45a800a9033 |
13 | 202b3513ca2 |
14 | d65a8125a7 |
15 | 7375d075a6 |
hex | 40bd5f66e7 |
278055053031 has 48 divisors (see below), whose sum is σ = 443507788800. Its totient is φ = 154440139392.
The previous prime is 278055052997. The next prime is 278055053093. The reversal of 278055053031 is 130350550872.
It is not a de Polignac number, because 278055053031 - 27 = 278055052903 is a prime.
It is a super-2 number, since 2×2780550530312 (a number of 24 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (278055053231) 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 47 ways as a sum of consecutive naturals, for example, 591786 + ... + 952008.
It is an arithmetic number, because the mean of its divisors is an integer number (9239745600).
Almost surely, 2278055053031 is an apocalyptic number.
278055053031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
278055053031 is a deficient number, since it is larger than the sum of its proper divisors (165452735769).
278055053031 is a wasteful number, since it uses less digits than its factorization.
278055053031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 360388 (or 360381 counting only the distinct ones).
The product of its (nonzero) digits is 126000, while the sum is 39.
The spelling of 278055053031 in words is "two hundred seventy-eight billion, fifty-five million, fifty-three thousand, thirty-one".
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