Base | Representation |
---|---|
bin | 10011000000001101… |
… | …01110111000100111 |
3 | 222100000110011022222 |
4 | 21200012232320213 |
5 | 131343242442411 |
6 | 4404210542555 |
7 | 510552136346 |
oct | 114006567047 |
9 | 28300404288 |
10 | 10202312231 |
11 | 4365a37201 |
12 | 1b88897a5b |
13 | c678a4057 |
14 | 6cad87b5d |
15 | 3eaa224db |
hex | 2601aee27 |
10202312231 has 8 divisors (see below), whose sum is σ = 10441716480. Its totient is φ = 9963838648.
The previous prime is 10202312213. The next prime is 10202312249. The reversal of 10202312231 is 13221320201.
It is an interprime number because it is at equal distance from previous prime (10202312213) and next prime (10202312249).
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 10202312231 - 26 = 10202312167 is a prime.
It is a super-2 number, since 2×102023122312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10202315231) 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, 210461 + ... + 254358.
It is an arithmetic number, because the mean of its divisors is an integer number (1305214560).
Almost surely, 210202312231 is an apocalyptic number.
10202312231 is a deficient number, since it is larger than the sum of its proper divisors (239404249).
10202312231 is an equidigital number, since it uses as much as digits as its factorization.
10202312231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 465333.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 10202312231 its reverse (13221320201), we get a palindrome (23423632432).
The spelling of 10202312231 in words is "ten billion, two hundred two million, three hundred twelve thousand, two hundred thirty-one".
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