Base | Representation |
---|---|
bin | 11111101000101111100… |
… | …00111100001001011001 |
3 | 10211220210200010101012221 |
4 | 33310113300330021121 |
5 | 120302212002244004 |
6 | 2151212251304041 |
7 | 141351334466101 |
oct | 17642760741131 |
9 | 3756720111187 |
10 | 1087025431129 |
11 | 38a006576400 |
12 | 15680a74b021 |
13 | 7b676a6baa1 |
14 | 3a88027c201 |
15 | 1d4218c4354 |
hex | fd17c3c259 |
1087025431129 has 12 divisors (see below), whose sum is σ = 1194957075312. Its totient is φ = 988099511960.
The previous prime is 1087025431117. The next prime is 1087025431171. The reversal of 1087025431129 is 9211345207801.
It is not a de Polignac number, because 1087025431129 - 219 = 1087024906841 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1087025431109) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671034 + ... + 1619980.
It is an arithmetic number, because the mean of its divisors is an integer number (99579756276).
Almost surely, 21087025431129 is an apocalyptic number.
It is an amenable number.
1087025431129 is a deficient number, since it is larger than the sum of its proper divisors (107931644183).
1087025431129 is an equidigital number, since it uses as much as digits as its factorization.
1087025431129 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 958436 (or 958425 counting only the distinct ones).
The product of its (nonzero) digits is 120960, while the sum is 43.
The spelling of 1087025431129 in words is "one trillion, eighty-seven billion, twenty-five million, four hundred thirty-one thousand, one hundred twenty-nine".
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