Base | Representation |
---|---|
bin | 100011000011111111000110… |
… | …100100111111101100101001 |
3 | 202012222220110101111001010010 |
4 | 203003333012210333230221 |
5 | 130203000422324241040 |
6 | 1303545014225242133 |
7 | 44323661044362324 |
oct | 4303770644775451 |
9 | 665886411431103 |
10 | 154205542415145 |
11 | 45153226621611 |
12 | 15366098193349 |
13 | 680769bcc83b0 |
14 | 2a118339757bb |
15 | 12c639020ae80 |
hex | 8c3fc693fb29 |
154205542415145 has 32 divisors (see below), whose sum is σ = 265790813500800. Its totient is φ = 75892917026304.
The previous prime is 154205542415083. The next prime is 154205542415147. The reversal of 154205542415145 is 541514245502451.
It is not a de Polignac number, because 154205542415145 - 26 = 154205542415081 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 154205542415094 and 154205542415103.
It is not an unprimeable number, because it can be changed into a prime (154205542415147) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122589835 + ... + 123841344.
It is an arithmetic number, because the mean of its divisors is an integer number (8305962921900).
Almost surely, 2154205542415145 is an apocalyptic number.
154205542415145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
154205542415145 is a deficient number, since it is larger than the sum of its proper divisors (111585271085655).
154205542415145 is a wasteful number, since it uses less digits than its factorization.
154205542415145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246434409.
The product of its (nonzero) digits is 3200000, while the sum is 48.
Adding to 154205542415145 its reverse (541514245502451), we get a palindrome (695719787917596).
The spelling of 154205542415145 in words is "one hundred fifty-four trillion, two hundred five billion, five hundred forty-two million, four hundred fifteen thousand, one hundred forty-five".
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