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20123310302 = 231324569521
BaseRepresentation
bin10010101111011100…
…010101100011011110
31220221102120002011222
4102233130111203132
5312203031412202
613124452213342
71311450213104
oct225734254336
956842502158
1020123310302
1185970a1967
123a9730a252
131b890c0504
14d8c823c74
157cb9c74a2
hex4af7158de

20123310302 has 8 divisors (see below), whose sum is σ = 31158674112. Its totient is φ = 9737085600.

The previous prime is 20123310281. The next prime is 20123310341. The reversal of 20123310302 is 20301332102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162284699 + ... + 162284822.

It is an arithmetic number, because the mean of its divisors is an integer number (3894834264).

Almost surely, 220123310302 is an apocalyptic number.

20123310302 is a deficient number, since it is larger than the sum of its proper divisors (11035363810).

20123310302 is a wasteful number, since it uses less digits than its factorization.

20123310302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324569554.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20123310302 its reverse (20301332102), we get a palindrome (40424642404).

The spelling of 20123310302 in words is "twenty billion, one hundred twenty-three million, three hundred ten thousand, three hundred two".

Divisors: 1 2 31 62 324569521 649139042 10061655151 20123310302