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20927150321 = 711271781173
BaseRepresentation
bin10011011111010110…
…101111100011110001
32000000110010101101112
4103133112233203301
5320324322302241
613340325243105
71340410562030
oct233726574361
960013111345
1020927150321
118969915860
124080563495
131c867b91ac
1410274ac717
1582735c1eb
hex4df5af8f1

20927150321 has 8 divisors (see below), whose sum is σ = 26090992704. Its totient is φ = 16306870320.

The previous prime is 20927150311. The next prime is 20927150327. The reversal of 20927150321 is 12305172902.

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 20927150321 - 222 = 20922956017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20927150327) 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, 135890510 + ... + 135890663.

It is an arithmetic number, because the mean of its divisors is an integer number (3261374088).

Almost surely, 220927150321 is an apocalyptic number.

It is an amenable number.

20927150321 is a deficient number, since it is larger than the sum of its proper divisors (5163842383).

20927150321 is a wasteful number, since it uses less digits than its factorization.

20927150321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271781191.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 20927150321 in words is "twenty billion, nine hundred twenty-seven million, one hundred fifty thousand, three hundred twenty-one".

Divisors: 1 7 11 77 271781173 1902468211 2989592903 20927150321