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21030310301 = 7111323119091
BaseRepresentation
bin10011100101100000…
…010001000110011101
32000021122020110021112
4103211200101012131
5321032224412201
613354452311405
71343102455010
oct234540210635
960248213245
1021030310301
118a12075440
1240ab012565
131ca1c980c0
141037083377
158314380bb
hex4e581119d

21030310301 has 32 divisors (see below), whose sum is σ = 28251826176. Its totient is φ = 15118488000.

The previous prime is 21030310289. The next prime is 21030310319. The reversal of 21030310301 is 10301303012.

It is not a de Polignac number, because 21030310301 - 26 = 21030310237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030310321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2308766 + ... + 2317856.

It is an arithmetic number, because the mean of its divisors is an integer number (882869568).

Almost surely, 221030310301 is an apocalyptic number.

It is an amenable number.

21030310301 is a deficient number, since it is larger than the sum of its proper divisors (7221515875).

21030310301 is a wasteful number, since it uses less digits than its factorization.

21030310301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21030310301 its reverse (10301303012), we get a palindrome (31331613313).

The spelling of 21030310301 in words is "twenty-one billion, thirty million, three hundred ten thousand, three hundred one".

Divisors: 1 7 11 13 77 91 143 1001 2311 9091 16177 25421 30043 63637 100001 118183 177947 210301 330473 700007 827281 1300013 2313311 9100091 21009301 147065107 231102311 273120913 1617716177 1911846391 3004330043 21030310301