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161193107130 = 235114311359627
BaseRepresentation
bin1001011000011111011…
…0111001111010111010
3120102001211021021021220
42112013312321322322
510120110413412010
6202015011412510
714434341542436
oct2260766717272
9512054237256
10161193107130
11623a8341210
12272a72b4136
131227b4b9883
147b3216b9c6
1542d65b5970
hex2587db9eba

161193107130 has 64 divisors (see below), whose sum is σ = 431847618048. Its totient is φ = 38168343360.

The previous prime is 161193107129. The next prime is 161193107161. The reversal of 161193107130 is 31701391161.

161193107130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 161193107091 and 161193107100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5665624 + ... + 5694003.

It is an arithmetic number, because the mean of its divisors is an integer number (6747619032).

Almost surely, 2161193107130 is an apocalyptic number.

161193107130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161193107130 is an abundant number, since it is smaller than the sum of its proper divisors (270654510918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161193107130 is a wasteful number, since it uses less digits than its factorization.

161193107130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11359691.

The product of its (nonzero) digits is 3402, while the sum is 33.

Adding to 161193107130 its reverse (31701391161), we get a palindrome (192894498291).

The spelling of 161193107130 in words is "one hundred sixty-one billion, one hundred ninety-three million, one hundred seven thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 43 55 66 86 110 129 165 215 258 330 430 473 645 946 1290 1419 2365 2838 4730 7095 14190 11359627 22719254 34078881 56798135 68157762 113596270 124955897 170394405 249911794 340788810 374867691 488463961 624779485 749735382 976927922 1249558970 1465391883 1874338455 2442319805 2930783766 3748676910 4884639610 5373103571 7326959415 10746207142 14653918830 16119310713 26865517855 32238621426 53731035710 80596553565 161193107130