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22071049285 = 529152214133
BaseRepresentation
bin10100100011100010…
…010111110001000101
32002222011120110202211
4110203202113301011
5330200142034120
614050031103421
71410640552315
oct244342276105
962864513684
1022071049285
1193a6593aaa
12433b671b71
13210979a29c
1410d5397445
158929b525a
hex523897c45

22071049285 has 8 divisors (see below), whose sum is σ = 27398544120. Its totient is φ = 17047982784.

The previous prime is 22071049283. The next prime is 22071049303. The reversal of 22071049285 is 58294017022.

It can be written as a sum of positive squares in 4 ways, for example, as 2770337956 + 19300711329 = 52634^2 + 138927^2 .

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 22071049285 - 21 = 22071049283 is a prime.

It is a super-2 number, since 2×220710492852 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22071049283) 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, 76106922 + ... + 76107211.

It is an arithmetic number, because the mean of its divisors is an integer number (3424818015).

Almost surely, 222071049285 is an apocalyptic number.

It is an amenable number.

22071049285 is a deficient number, since it is larger than the sum of its proper divisors (5327494835).

22071049285 is a wasteful number, since it uses less digits than its factorization.

22071049285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152214167.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 22071049285 in words is "twenty-two billion, seventy-one million, forty-nine thousand, two hundred eighty-five".

Divisors: 1 5 29 145 152214133 761070665 4414209857 22071049285