Base | Representation |
---|---|
bin | 11011110110110001101111… |
… | …00011111110111011010000 |
3 | 22000212222210221101110101122 |
4 | 31323120313203332323100 |
5 | 31012103241433131331 |
6 | 334140301122221412 |
7 | 15621403505640611 |
oct | 1573306743767320 |
9 | 260788727343348 |
10 | 61255755755216 |
11 | 1857746920a340 |
12 | 6a539387b4868 |
13 | 28245154c5a19 |
14 | 111ab19b81c08 |
15 | 7136095c217b |
hex | 37b6378feed0 |
61255755755216 has 80 divisors (see below), whose sum is σ = 133653927744000. Its totient is φ = 26944337817600.
The previous prime is 61255755755149. The next prime is 61255755755237.
61255755755216 is nontrivially palindromic in base 10.
It is a super-2 number, since 2×612557557552162 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (62).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156113000 + ... + 156504888.
It is an arithmetic number, because the mean of its divisors is an integer number (1670674096800).
Almost surely, 261255755755216 is an apocalyptic number.
It is an amenable number.
61255755755216 is an abundant number, since it is smaller than the sum of its proper divisors (72398171988784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61255755755216 is a wasteful number, since it uses less digits than its factorization.
61255755755216 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 420588 (or 420582 counting only the distinct ones).
The product of its digits is 110250000, while the sum is 62.
The spelling of 61255755755216 in words is "sixty-one trillion, two hundred fifty-five billion, seven hundred fifty-five million, seven hundred fifty-five thousand, two hundred sixteen".
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