Base | Representation |
---|---|
bin | 1001000001100100000… |
… | …1101001101101100000 |
3 | 112211011220122021201100 |
4 | 2100121001221231200 |
5 | 10020004400423143 |
6 | 155120201034400 |
7 | 14126001042021 |
oct | 2203101515540 |
9 | 484156567640 |
10 | 155038686048 |
11 | 5a82a3295a4 |
12 | 2606a185a00 |
13 | 1180a4347ac |
14 | 770aa42c48 |
15 | 40761286d3 |
hex | 2419069b60 |
155038686048 has 72 divisors (see below), whose sum is σ = 443439910368. Its totient is φ = 51380819712.
The previous prime is 155038686043. The next prime is 155038686059. The reversal of 155038686048 is 840686830551.
155038686048 is a `hidden beast` number, since 1 + 550 + 3 + 8 + 6 + 86 + 0 + 4 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (72).
It is a junction number, because it is equal to n+sod(n) for n = 155038685985 and 155038686003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (155038686043) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1506040 + ... + 1605687.
It is an arithmetic number, because the mean of its divisors is an integer number (6158887644).
Almost surely, 2155038686048 is an apocalyptic number.
155038686048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
155038686048 is an abundant number, since it is smaller than the sum of its proper divisors (288401224320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
155038686048 is a wasteful number, since it uses less digits than its factorization.
155038686048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3111916 (or 3111905 counting only the distinct ones).
The product of its (nonzero) digits is 5529600, while the sum is 54.
The spelling of 155038686048 in words is "one hundred fifty-five billion, thirty-eight million, six hundred eighty-six thousand, forty-eight".
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