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161135934286 = 283779617759
BaseRepresentation
bin1001011000010001110…
…0110011101101001110
3120101220211200120220011
42112010130303231032
510120001244344121
6202005210143434
714433045561655
oct2260434635516
9511824616804
10161135934286
1162379041428
1227290121b7a
131226c6bc6a2
147b2872819c
1542d15707e1
hex2584733b4e

161135934286 has 8 divisors (see below), whose sum is σ = 241732779840. Its totient is φ = 80558341008.

The previous prime is 161135934257. The next prime is 161135934353. The reversal of 161135934286 is 682439531161.

161135934286 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1611359342862 (a number of 23 digits) contains 22 as substring.

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, 4792126 + ... + 4825633.

It is an arithmetic number, because the mean of its divisors is an integer number (30216597480).

Almost surely, 2161135934286 is an apocalyptic number.

161135934286 is a deficient number, since it is larger than the sum of its proper divisors (80596845554).

161135934286 is an equidigital number, since it uses as much as digits as its factorization.

161135934286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9626138.

The product of its digits is 933120, while the sum is 49.

The spelling of 161135934286 in words is "one hundred sixty-one billion, one hundred thirty-five million, nine hundred thirty-four thousand, two hundred eighty-six".

Divisors: 1 2 8377 16754 9617759 19235518 80567967143 161135934286