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130993193 = 940313931
BaseRepresentation
bin1111100111011…
…00110000101001
3100010111010212202
413303230300221
5232013240233
620555345545
73150265232
oct763546051
9303433782
10130993193
1167a40141
1237a522b5
13211a5886
141357c089
15b777be8
hex7cecc29

130993193 has 4 divisors (see below), whose sum is σ = 131016528. Its totient is φ = 130969860.

The previous prime is 130993189. The next prime is 130993217. The reversal of 130993193 is 391399031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 391399031 = 1920599949.

It is a cyclic number.

It is not a de Polignac number, because 130993193 - 22 = 130993189 is a prime.

It is a super-2 number, since 2×1309931932 = 34318433224670498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130993133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2438 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (32754132).

Almost surely, 2130993193 is an apocalyptic number.

It is an amenable number.

130993193 is a deficient number, since it is larger than the sum of its proper divisors (23335).

130993193 is an equidigital number, since it uses as much as digits as its factorization.

130993193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23334.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 130993193 is about 11445.2257732209. The cubic root of 130993193 is about 507.8665109504.

The spelling of 130993193 in words is "one hundred thirty million, nine hundred ninety-three thousand, one hundred ninety-three".

Divisors: 1 9403 13931 130993193