Base | Representation |
---|---|
bin | 111001001000101111… |
… | …1100010001010001011 |
3 | 102201201011210012122201 |
4 | 1302101133202022023 |
5 | 4002242203000422 |
6 | 132211223501031 |
7 | 11602423122340 |
oct | 1622137421213 |
9 | 381634705581 |
10 | 122700046987 |
11 | 48044a83411 |
12 | 1b943bb7777 |
13 | b7556b92cb |
14 | 5d1db8c7c7 |
15 | 32d2049727 |
hex | 1c917e228b |
122700046987 has 16 divisors (see below), whose sum is σ = 145083260160. Its totient is φ = 101531451168.
The previous prime is 122700046921. The next prime is 122700046999. The reversal of 122700046987 is 789640007221.
It is a de Polignac number, because none of the positive numbers 2k-122700046987 is a prime.
It is a super-2 number, since 2×1227000469872 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (122700046487) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683108 + ... + 1754494.
It is an arithmetic number, because the mean of its divisors is an integer number (9067703760).
Almost surely, 2122700046987 is an apocalyptic number.
122700046987 is a deficient number, since it is larger than the sum of its proper divisors (22383213173).
122700046987 is an equidigital number, since it uses as much as digits as its factorization.
122700046987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79890.
The product of its (nonzero) digits is 338688, while the sum is 46.
The spelling of 122700046987 in words is "one hundred twenty-two billion, seven hundred million, forty-six thousand, nine hundred eighty-seven".
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