Base | Representation |
---|---|
bin | 1000010100100011110… |
… | …1000010010001000101 |
3 | 111122222222110202211201 |
4 | 2011020331002101011 |
5 | 4320234204133024 |
6 | 145401323302501 |
7 | 13220425635202 |
oct | 2051075022105 |
9 | 448888422751 |
10 | 142957880389 |
11 | 5569aaa6495 |
12 | 2385837aa31 |
13 | 10633619c8c |
14 | 6cc23ccca9 |
15 | 3aba745744 |
hex | 2148f42445 |
142957880389 has 8 divisors (see below), whose sum is σ = 146826442880. Its totient is φ = 139089572496.
The previous prime is 142957880323. The next prime is 142957880413. The reversal of 142957880389 is 983088759241.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 142957880389 - 211 = 142957878341 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 142957880389.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142957880789) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812232 + ... + 1889470.
It is an arithmetic number, because the mean of its divisors is an integer number (18353305360).
Almost surely, 2142957880389 is an apocalyptic number.
It is an amenable number.
142957880389 is a deficient number, since it is larger than the sum of its proper divisors (3868562491).
142957880389 is an equidigital number, since it uses as much as digits as its factorization.
142957880389 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127299.
The product of its (nonzero) digits is 34836480, while the sum is 64.
The spelling of 142957880389 in words is "one hundred forty-two billion, nine hundred fifty-seven million, eight hundred eighty thousand, three hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •