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34428051181 = 131262809551
BaseRepresentation
bin100000000100000100…
…100101111011101101
310021212100110012122201
4200010010211323231
51031002040114211
623452132341501
72326105415026
oct400404457355
9107770405581
1034428051181
1113667812467
126809a74891
13332889a024
141948585c4d
15d677540c1
hex804125eed

34428051181 has 4 divisors (see below), whose sum is σ = 34690860864. Its totient is φ = 34165241500.

The previous prime is 34428051173. The next prime is 34428051199. The reversal of 34428051181 is 18115082443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18115082443 = 29927605309.

It is a cyclic number.

It is not a de Polignac number, because 34428051181 - 23 = 34428051173 is a prime.

It is a super-2 number, since 2×344280511812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34428051181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34428061181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131404645 + ... + 131404906.

It is an arithmetic number, because the mean of its divisors is an integer number (8672715216).

Almost surely, 234428051181 is an apocalyptic number.

It is an amenable number.

34428051181 is a deficient number, since it is larger than the sum of its proper divisors (262809683).

34428051181 is a wasteful number, since it uses less digits than its factorization.

34428051181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262809682.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 34428051181 in words is "thirty-four billion, four hundred twenty-eight million, fifty-one thousand, one hundred eighty-one".

Divisors: 1 131 262809551 34428051181