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20210202303231 = 348713833129571
BaseRepresentation
bin1001001100001100011011…
…11011011101101011111111
32122120002001202011220010210
410212012031323131223333
510122110443242200411
6110552234435003503
74154065440100113
oct446061573355377
978502052156123
1020210202303231
11649210a3596a6
122324a57a39593
13b37a771a2b15
144dc2712c3743
15250aa8d29ca6
hex12618deddaff

20210202303231 has 8 divisors (see below), whose sum is σ = 27002268924544. Its totient is φ = 13445801942040.

The previous prime is 20210202303223. The next prime is 20210202303233. The reversal of 20210202303231 is 13230320201202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20210202303231 - 23 = 20210202303223 is a prime.

It is a super-2 number, since 2×202102023032312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210202303198 and 20210202303207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210202303233) 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, 6916563325 + ... + 6916566246.

It is an arithmetic number, because the mean of its divisors is an integer number (3375283615568).

Almost surely, 220210202303231 is an apocalyptic number.

20210202303231 is a deficient number, since it is larger than the sum of its proper divisors (6792066621313).

20210202303231 is a wasteful number, since it uses less digits than its factorization.

20210202303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833130061.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20210202303231 its reverse (13230320201202), we get a palindrome (33440522504433).

The spelling of 20210202303231 in words is "twenty trillion, two hundred ten billion, two hundred two million, three hundred three thousand, two hundred thirty-one".

Divisors: 1 3 487 1461 13833129571 41499388713 6736734101077 20210202303231