Base | Representation |
---|---|
bin | 111100111100000000… |
… | …1010010000010101000 |
3 | 110111210001002220221211 |
4 | 1321320001102002220 |
5 | 4121001312331330 |
6 | 140041212042504 |
7 | 12311616631630 |
oct | 1717001220250 |
9 | 414701086854 |
10 | 130862620840 |
11 | 505535a0a16 |
12 | 21441763434 |
13 | c456811573 |
14 | 6495c956c0 |
15 | 360d959d2a |
hex | 1e780520a8 |
130862620840 has 256 divisors, whose sum is σ = 364041216000. Its totient is φ = 41333483520.
The previous prime is 130862620787. The next prime is 130862620849. The reversal of 130862620840 is 48026268031.
It is a super-2 number, since 2×1308626208402 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a junction number, because it is equal to n+sod(n) for n = 130862620793 and 130862620802.
It is not an unprimeable number, because it can be changed into a prime (130862620849) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82666689 + ... + 82668271.
It is an arithmetic number, because the mean of its divisors is an integer number (1422036000).
Almost surely, 2130862620840 is an apocalyptic number.
130862620840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130862620840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182020608000).
130862620840 is an abundant number, since it is smaller than the sum of its proper divisors (233178595160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130862620840 is a wasteful number, since it uses less digits than its factorization.
130862620840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2040 (or 2036 counting only the distinct ones).
The product of its (nonzero) digits is 110592, while the sum is 40.
Adding to 130862620840 its reverse (48026268031), we get a palindrome (178888888871).
The spelling of 130862620840 in words is "one hundred thirty billion, eight hundred sixty-two million, six hundred twenty thousand, eight hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •