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960021220021 = 18123671224071
BaseRepresentation
bin11011111100001011011…
…10010100101010110101
310101202222112021222101021
431332011232110222311
5111212110413020041
62013005550301141
7126234135505123
oct15760556245265
93352875258337
10960021220021
11340162a50866
121360851b77b1
136c6b6735b06
1434672a00913
1519e8ba71cd1
hexdf85b94ab5

960021220021 has 8 divisors (see below), whose sum is σ = 965370293888. Its totient is φ = 954672642000.

The previous prime is 960021220003. The next prime is 960021220049. The reversal of 960021220021 is 120022120069.

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 960021220021 - 221 = 960019122869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (960021220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4172416 + ... + 4396486.

It is an arithmetic number, because the mean of its divisors is an integer number (120671286736).

Almost surely, 2960021220021 is an apocalyptic number.

It is an amenable number.

960021220021 is a deficient number, since it is larger than the sum of its proper divisors (5349073867).

960021220021 is a wasteful number, since it uses less digits than its factorization.

960021220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247923.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 960021220021 in words is "nine hundred sixty billion, twenty-one million, two hundred twenty thousand, twenty-one".

Divisors: 1 181 23671 224071 4284451 40556851 5303984641 960021220021