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34044380781 = 3107349303889
BaseRepresentation
bin11111101101001101…
…000000011001101101
310020212121111201210220
4133231031000121231
51024210330141111
623350105121553
72313436314315
oct375515003155
9106777451726
1034044380781
1113490190194
1267214892b9
133297255318
14190d632445
15d43c18e06
hex7ed34066d

34044380781 has 16 divisors (see below), whose sum is σ = 45948168000. Its totient is φ = 22419641088.

The previous prime is 34044380753. The next prime is 34044380801. The reversal of 34044380781 is 18708344043.

It is not a de Polignac number, because 34044380781 - 25 = 34044380749 is a prime.

It is a super-2 number, since 2×340443807812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34044380701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39916 + ... + 263973.

It is an arithmetic number, because the mean of its divisors is an integer number (2871760500).

Almost surely, 234044380781 is an apocalyptic number.

It is an amenable number.

34044380781 is a deficient number, since it is larger than the sum of its proper divisors (11903787219).

34044380781 is a wasteful number, since it uses less digits than its factorization.

34044380781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304348.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 34044380781 in words is "thirty-four billion, forty-four million, three hundred eighty thousand, seven hundred eighty-one".

Divisors: 1 3 107 321 349 1047 37343 112029 303889 911667 32516123 97548369 106057261 318171783 11348126927 34044380781