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23102002000021 = 73789196918919
BaseRepresentation
bin1010100000010110110101…
…00111110111000010010101
310000210112022020111021002111
411100023122213313002111
511012000400003000041
6121044525130311021
74603031100666160
oct520133247670225
9100715266437074
1023102002000021
1173a755a95208a
1227113a5888471
13cb768131ab69
1459c200030ad7
152a0e0946e981
hex1502da9f7095

23102002000021 has 8 divisors (see below), whose sum is σ = 27115863351680. Its totient is φ = 19266534486288.

The previous prime is 23102002000019. The next prime is 23102002000037. The reversal of 23102002000021 is 12000020020132.

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 23102002000021 - 21 = 23102002000019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23102001999965 and 23102002000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102002000001) 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, 44598459201 + ... + 44598459718.

It is an arithmetic number, because the mean of its divisors is an integer number (3389482918960).

Almost surely, 223102002000021 is an apocalyptic number.

It is an amenable number.

23102002000021 is a deficient number, since it is larger than the sum of its proper divisors (4013861351659).

23102002000021 is an equidigital number, since it uses as much as digits as its factorization.

23102002000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89196918963.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 23102002000021 its reverse (12000020020132), we get a palindrome (35102022020153).

The spelling of 23102002000021 in words is "twenty-three trillion, one hundred two billion, two million, twenty-one", and thus it is an aban number.

Divisors: 1 7 37 259 89196918919 624378432433 3300286000003 23102002000021