Base | Representation |
---|---|
bin | 1011110001010111110… |
… | …1111110011100110111 |
3 | 201022222220020121110101 |
4 | 2330111331332130313 |
5 | 11303132344443111 |
6 | 232523142134531 |
7 | 20416332621052 |
oct | 2742575763467 |
9 | 638886217411 |
10 | 202232031031 |
11 | 78847789148 |
12 | 3323b121447 |
13 | 160bb8870b4 |
14 | 9b066d9a99 |
15 | 53d93bbbc1 |
hex | 2f15f7e737 |
202232031031 has 4 divisors (see below), whose sum is σ = 204195448912. Its totient is φ = 200268613152.
The previous prime is 202232031013. The next prime is 202232031137. The reversal of 202232031031 is 130130232202.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 202232031031 - 29 = 202232030519 is a prime.
It is a super-2 number, since 2×2022320310312 (a number of 23 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 (202232031011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981708786 + ... + 981708991.
It is an arithmetic number, because the mean of its divisors is an integer number (51048862228).
Almost surely, 2202232031031 is an apocalyptic number.
202232031031 is a deficient number, since it is larger than the sum of its proper divisors (1963417881).
202232031031 is a wasteful number, since it uses less digits than its factorization.
202232031031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1963417880.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 202232031031 its reverse (130130232202), we get a palindrome (332362263233).
It can be divided in two parts, 2022320 and 31031, that added together give a triangular number (2053351 = T2026).
The spelling of 202232031031 in words is "two hundred two billion, two hundred thirty-two million, thirty-one thousand, thirty-one".
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