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130193 = 722657
BaseRepresentation
bin11111110010010001
320121120222
4133302101
513131233
62442425
71051400
oct376221
9217528
10130193
11898a8
1263415
134734b
1435637
1528898
hex1fc91

130193 has 6 divisors (see below), whose sum is σ = 151506. Its totient is φ = 111552.

The previous prime is 130183. The next prime is 130199. The reversal of 130193 is 391031.

It can be divided in two parts, 130 and 193, that added together give a palindrome (323).

It can be written as a sum of positive squares in only one way, i.e., 117649 + 12544 = 343^2 + 112^2 .

It is not a de Polignac number, because 130193 - 28 = 129937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1280 + ... + 1377.

It is an arithmetic number, because the mean of its divisors is an integer number (25251).

2130193 is an apocalyptic number.

It is an amenable number.

130193 is a deficient number, since it is larger than the sum of its proper divisors (21313).

130193 is an equidigital number, since it uses as much as digits as its factorization.

130193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2664 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 130193 is about 360.8226711281. The cubic root of 130193 is about 50.6830269958.

The spelling of 130193 in words is "one hundred thirty thousand, one hundred ninety-three".

Divisors: 1 7 49 2657 18599 130193