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22051680032 = 25262512
BaseRepresentation
bin10100100010011000…
…011110111100100000
32002220211010102011002
4110202120132330200
5330130212230112
614044100011132
71410314121224
oct244230367440
962824112132
1022051680032
119396664658
124335090aa8
132105777ca5
1410d2994784
15890e3b1c2
hex52261ef20

22051680032 has 18 divisors (see below), whose sum is σ = 43415898939. Its totient is φ = 11025420000.

The previous prime is 22051680029. The next prime is 22051680059. The reversal of 22051680032 is 23008615022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11025840016 + 11025840016 = 105004^2 + 105004^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=105004.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22051679977 and 22051680004.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 826907 + ... + 853157.

Almost surely, 222051680032 is an apocalyptic number.

It is an amenable number.

22051680032 is a deficient number, since it is larger than the sum of its proper divisors (21364218907).

22051680032 is an frugal number, since it uses more digits than its factorization.

22051680032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52512 (or 26253 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 22051680032 in words is "twenty-two billion, fifty-one million, six hundred eighty thousand, thirty-two".

Divisors: 1 2 4 8 16 32 26251 52502 105004 210008 420016 840032 689115001 1378230002 2756460004 5512920008 11025840016 22051680032