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130233191 = 1111839381
BaseRepresentation
bin1111100001100…
…11001101100111
3100002001112100112
413300303031213
5231314430231
620531203235
73140651414
oct760631547
9302045315
10130233191
1167571140
123774651b
1320c9a97a
141342110b
15b67792b
hex7c33367

130233191 has 4 divisors (see below), whose sum is σ = 142072584. Its totient is φ = 118393800.

The previous prime is 130233167. The next prime is 130233203. The reversal of 130233191 is 191332031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130233191 - 26 = 130233127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130233101) 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, 5919680 + ... + 5919701.

It is an arithmetic number, because the mean of its divisors is an integer number (35518146).

Almost surely, 2130233191 is an apocalyptic number.

130233191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130233191 is a deficient number, since it is larger than the sum of its proper divisors (11839393).

130233191 is a wasteful number, since it uses less digits than its factorization.

130233191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11839392.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 130233191 is about 11411.9757710924. The cubic root of 130233191 is about 506.8824179735.

The spelling of 130233191 in words is "one hundred thirty million, two hundred thirty-three thousand, one hundred ninety-one".

Divisors: 1 11 11839381 130233191