Base | Representation |
---|---|
bin | 10111001111010000001010… |
… | …001001110110101110011111 |
3 | 111101212112100120122020102120 |
4 | 113033100022021312232133 |
5 | 101343444134301144411 |
6 | 1001211301340554023 |
7 | 30345636605231361 |
oct | 2717201211665637 |
9 | 441775316566376 |
10 | 102203212131231 |
11 | 2a6241588a7972 |
12 | b567800b52913 |
13 | 450494c324943 |
14 | 1b3493a208d31 |
15 | bc3817c19106 |
hex | 5cf40a276b9f |
102203212131231 has 16 divisors (see below), whose sum is σ = 137111715417600. Its totient is φ = 67715844503328.
The previous prime is 102203212131197. The next prime is 102203212131257. The reversal of 102203212131231 is 132131212302201.
It is not a de Polignac number, because 102203212131231 - 222 = 102203207936927 is a prime.
It is a super-2 number, since 2×1022032121312312 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102203212131931) 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, 93544291 + ... + 94630548.
It is an arithmetic number, because the mean of its divisors is an integer number (8569482213600).
Almost surely, 2102203212131231 is an apocalyptic number.
102203212131231 is a deficient number, since it is larger than the sum of its proper divisors (34908503286369).
102203212131231 is a wasteful number, since it uses less digits than its factorization.
102203212131231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188175958.
The product of its (nonzero) digits is 864, while the sum is 24.
Adding to 102203212131231 its reverse (132131212302201), we get a palindrome (234334424433432).
The spelling of 102203212131231 in words is "one hundred two trillion, two hundred three billion, two hundred twelve million, one hundred thirty-one thousand, two hundred thirty-one".
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