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21302023201 = 731571185747
BaseRepresentation
bin10011110101101100…
…110001010000100001
32000222120111220022021
4103311230301100201
5322111304220301
613441440141441
71352612131624
oct236554612041
960876456267
1021302023201
119041489358
124166007881
132016370774
1410611b1dbb
1584a20a8a1
hex4f5b31421

21302023201 has 8 divisors (see below), whose sum is σ = 21607693344. Its totient is φ = 20996727840.

The previous prime is 21302023199. The next prime is 21302023279. The reversal of 21302023201 is 10232020312.

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 21302023201 - 21 = 21302023199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302723201) 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, 21810 + ... + 207556.

It is an arithmetic number, because the mean of its divisors is an integer number (2700961668).

Almost surely, 221302023201 is an apocalyptic number.

It is an amenable number.

21302023201 is a deficient number, since it is larger than the sum of its proper divisors (305670143).

21302023201 is a wasteful number, since it uses less digits than its factorization.

21302023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187391.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21302023201 its reverse (10232020312), we get a palindrome (31534043513).

The spelling of 21302023201 in words is "twenty-one billion, three hundred two million, twenty-three thousand, two hundred one".

Divisors: 1 73 1571 114683 185747 13559531 291808537 21302023201