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130440797 = 2313940801
BaseRepresentation
bin1111100011001…
…01111001011101
3100002110002010122
413301211321131
5231343101142
620535444325
73142504604
oct761457135
9302402118
10130440797
11676a3113
12378266a5
1321041306
1413476a3b
15b6b91d2
hex7c65e5d

130440797 has 8 divisors (see below), whose sum is σ = 137094720. Its totient is φ = 123868800.

The previous prime is 130440769. The next prime is 130440911. The reversal of 130440797 is 797044031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130440797 - 212 = 130436701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440767) 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 7 ways as a sum of consecutive naturals, for example, 17204 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (17136840).

Almost surely, 2130440797 is an apocalyptic number.

It is an amenable number.

130440797 is a deficient number, since it is larger than the sum of its proper divisors (6653923).

130440797 is a wasteful number, since it uses less digits than its factorization.

130440797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40963.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 130440797 is about 11421.0681199264. The cubic root of 130440797 is about 507.1516170486.

The spelling of 130440797 in words is "one hundred thirty million, four hundred forty thousand, seven hundred ninety-seven".

Divisors: 1 23 139 3197 40801 938423 5671339 130440797