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34661420145 = 3251170023071
BaseRepresentation
bin100000010001111110…
…110100110001110001
310022110121120120200200
4200101332310301301
51031441310421040
623531230305413
72334641132022
oct402176646161
9108417516620
1034661420145
1113777516a80
126874058269
133365038881
14196b572c49
15d7cea0630
hex811fb4c71

34661420145 has 24 divisors (see below), whose sum is σ = 65541595392. Its totient is φ = 16805536800.

The previous prime is 34661420117. The next prime is 34661420153. The reversal of 34661420145 is 54102416643.

34661420145 is a `hidden beast` number, since 3 + 4 + 6 + 614 + 20 + 14 + 5 = 666.

It is not a de Polignac number, because 34661420145 - 214 = 34661403761 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35011041 + ... + 35012030.

It is an arithmetic number, because the mean of its divisors is an integer number (2730899808).

Almost surely, 234661420145 is an apocalyptic number.

It is an amenable number.

34661420145 is a deficient number, since it is larger than the sum of its proper divisors (30880175247).

34661420145 is a wasteful number, since it uses less digits than its factorization.

34661420145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70023093 (or 70023090 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 34661420145 its reverse (54102416643), we get a palindrome (88763836788).

The spelling of 34661420145 in words is "thirty-four billion, six hundred sixty-one million, four hundred twenty thousand, one hundred forty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 70023071 210069213 350115355 630207639 770253781 1050346065 2310761343 3151038195 3851268905 6932284029 11553806715 34661420145