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130278317 = 1315716379
BaseRepresentation
bin1111100001111…
…10001110101101
3100002010211020212
413300332032231
5231322401232
620532152205
73141230111
oct760761655
9302124225
10130278317
11675a2034
1237768665
1320cb5380
1413433741
15b685eb2
hex7c3e3ad

130278317 has 8 divisors (see below), whose sum is σ = 140411040. Its totient is φ = 120161520.

The previous prime is 130278301. The next prime is 130278349. The reversal of 130278317 is 713872031.

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

It is a cyclic number.

It is not a de Polignac number, because 130278317 - 24 = 130278301 is a prime.

It is a super-4 number, since 4×1302783174 (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130278367) 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, 17234 + ... + 23612.

It is an arithmetic number, because the mean of its divisors is an integer number (17551380).

Almost surely, 2130278317 is an apocalyptic number.

It is an amenable number.

130278317 is a deficient number, since it is larger than the sum of its proper divisors (10132723).

130278317 is a wasteful number, since it uses less digits than its factorization.

130278317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 130278317 is about 11413.9527333873. The cubic root of 130278317 is about 506.9409563906.

The spelling of 130278317 in words is "one hundred thirty million, two hundred seventy-eight thousand, three hundred seventeen".

Divisors: 1 13 1571 6379 20423 82927 10021409 130278317