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20010302331 = 326992471323
BaseRepresentation
bin10010101000101101…
…001111101101111011
31220122112220200101120
4102220231033231323
5311440114133311
613105334120323
71305605522565
oct225055175573
956575820346
1020010302331
118539326348
123a654b00a3
131b6b873ca6
14d7b808335
157c1b03706
hex4a8b4fb7b

20010302331 has 8 divisors (see below), whose sum is σ = 26690299200. Its totient is φ = 13335253512.

The previous prime is 20010302327. The next prime is 20010302341. The reversal of 20010302331 is 13320301002.

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

It is not a de Polignac number, because 20010302331 - 22 = 20010302327 is a prime.

It is a super-2 number, since 2×200103023312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20010302331.

It is not an unprimeable number, because it can be changed into a prime (20010302341) 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, 1227565 + ... + 1243758.

It is an arithmetic number, because the mean of its divisors is an integer number (3336287400).

Almost surely, 220010302331 is an apocalyptic number.

20010302331 is a deficient number, since it is larger than the sum of its proper divisors (6679996869).

20010302331 is a wasteful number, since it uses less digits than its factorization.

20010302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474025.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20010302331 its reverse (13320301002), we get a palindrome (33330603333).

The spelling of 20010302331 in words is "twenty billion, ten million, three hundred two thousand, three hundred thirty-one".

Divisors: 1 3 2699 8097 2471323 7413969 6670100777 20010302331