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161368394696 = 23193104513209
BaseRepresentation
bin1001011001001001001…
…1100100101111001000
3120102112001002210121222
42112102103210233020
510120440302112241
6202044232421212
714441600503055
oct2262223445710
9512461083558
10161368394696
1162488285373
1227335b47808
13122a8900822
147b4b55a02c
1542e6b8ca4b
hex25924e4bc8

161368394696 has 16 divisors (see below), whose sum is σ = 304133441100. Its totient is φ = 80266143744.

The previous prime is 161368394669. The next prime is 161368394699. The reversal of 161368394696 is 696493863161.

It can be written as a sum of positive squares in 2 ways, for example, as 148094128900 + 13274265796 = 384830^2 + 115214^2 .

It is not an unprimeable number, because it can be changed into a prime (161368394699) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52255061 + ... + 52258148.

Almost surely, 2161368394696 is an apocalyptic number.

It is an amenable number.

161368394696 is a deficient number, since it is larger than the sum of its proper divisors (142765046404).

161368394696 is a wasteful number, since it uses less digits than its factorization.

161368394696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104513408 (or 104513404 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 62.

The spelling of 161368394696 in words is "one hundred sixty-one billion, three hundred sixty-eight million, three hundred ninety-four thousand, six hundred ninety-six".

Divisors: 1 2 4 8 193 386 772 1544 104513209 209026418 418052836 836105672 20171049337 40342098674 80684197348 161368394696