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130247320 = 2357465169
BaseRepresentation
bin1111100001101…
…10101010011000
3100002002020201211
413300312222120
5231320403240
620531352504
73141040540
oct760665230
9302066654
10130247320
1167580815
1237752734
1320ca4228
1413426320
15b67bbea
hex7c36a98

130247320 has 32 divisors (see below), whose sum is σ = 334922400. Its totient is φ = 44656128.

The previous prime is 130247287. The next prime is 130247333. The reversal of 130247320 is 23742031.

It is a junction number, because it is equal to n+sod(n) for n = 130247291 and 130247300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232305 + ... + 232864.

It is an arithmetic number, because the mean of its divisors is an integer number (10466325).

Almost surely, 2130247320 is an apocalyptic number.

130247320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130247320 is an abundant number, since it is smaller than the sum of its proper divisors (204675080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130247320 is a wasteful number, since it uses less digits than its factorization.

130247320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465187 (or 465183 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 130247320 is about 11412.5947969776. The cubic root of 130247320 is about 506.9007478699.

Adding to 130247320 its reverse (23742031), we get a palindrome (153989351).

The spelling of 130247320 in words is "one hundred thirty million, two hundred forty-seven thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 465169 930338 1860676 2325845 3256183 3721352 4651690 6512366 9303380 13024732 16280915 18606760 26049464 32561830 65123660 130247320