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10031023000021 = 38233863679229
BaseRepresentation
bin1001000111111000011110…
…0100000000100111010101
31022111221211020110221102011
42101332013210000213111
52303322013342000041
633200104403344221
72053501046446432
oct221760744004725
938457736427364
1010031023000021
113218150a80111
1211600b5382071
13579bc945157a
1426970b390b89
15125de3792e81
hex91f879009d5

10031023000021 has 8 divisors (see below), whose sum is σ = 10036259009280. Its totient is φ = 10025788364592.

The previous prime is 10031022999989. The next prime is 10031023000049. The reversal of 10031023000021 is 12000032013001.

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 10031023000021 - 25 = 10031022999989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10031022999965 and 10031023000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031023000051) 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, 14428635 + ... + 15107863.

It is an arithmetic number, because the mean of its divisors is an integer number (1254532376160).

Almost surely, 210031023000021 is an apocalyptic number.

It is an amenable number.

10031023000021 is a deficient number, since it is larger than the sum of its proper divisors (5236009259).

10031023000021 is an equidigital number, since it uses as much as digits as its factorization.

10031023000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686915.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10031023000021 its reverse (12000032013001), we get a palindrome (22031055013022).

The spelling of 10031023000021 in words is "ten trillion, thirty-one billion, twenty-three million, twenty-one", and thus it is an aban number and an uban number.

Divisors: 1 3823 3863 679229 14768249 2596692467 2623861627 10031023000021