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161311413364 = 22137294363893
BaseRepresentation
bin1001011000111011101…
…0001101010001110100
3120102101001212211221021
42112032322031101310
510120331210211424
6202034435230524
714440306250533
oct2261672152164
9512331784837
10161311413364
11624590a6462
122731aa48444
1312299b6c86a
147b43b6631a
1542e1b844e4
hex258ee8d474

161311413364 has 12 divisors (see below), whose sum is σ = 284355521604. Its totient is φ = 80066978624.

The previous prime is 161311413359. The next prime is 161311413377. The reversal of 161311413364 is 463314113161.

161311413364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 85112227600 + 76199185764 = 291740^2 + 276042^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 147181399 + ... + 147182494.

It is an arithmetic number, because the mean of its divisors is an integer number (23696293467).

Almost surely, 2161311413364 is an apocalyptic number.

It is an amenable number.

161311413364 is a deficient number, since it is larger than the sum of its proper divisors (123044108240).

161311413364 is a wasteful number, since it uses less digits than its factorization.

161311413364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294364034 (or 294364032 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The spelling of 161311413364 in words is "one hundred sixty-one billion, three hundred eleven million, four hundred thirteen thousand, three hundred sixty-four".

Divisors: 1 2 4 137 274 548 294363893 588727786 1177455572 40327853341 80655706682 161311413364