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130823655 = 3523379199
BaseRepresentation
bin1111100110000…
…11010111100111
3100010011112022120
413303003113213
5231442324110
620552001023
73145661034
oct763032747
9303145276
10130823655
1167934826
1237990173
1321146661
141353638b
15b742870
hex7cc35e7

130823655 has 16 divisors (see below), whose sum is σ = 218419200. Its totient is φ = 66738848.

The previous prime is 130823647. The next prime is 130823713. The reversal of 130823655 is 556328031.

It is a cyclic number.

It is not a de Polignac number, because 130823655 - 23 = 130823647 is a prime.

It is a super-3 number, since 3×1308236553 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 189255 + ... + 189944.

It is an arithmetic number, because the mean of its divisors is an integer number (13651200).

Almost surely, 2130823655 is an apocalyptic number.

130823655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130823655 is a deficient number, since it is larger than the sum of its proper divisors (87595545).

130823655 is a wasteful number, since it uses less digits than its factorization.

130823655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379230.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 130823655 is about 11437.8168808562. The cubic root of 130823655 is about 507.6473142033.

The spelling of 130823655 in words is "one hundred thirty million, eight hundred twenty-three thousand, six hundred fifty-five".

Divisors: 1 3 5 15 23 69 115 345 379199 1137597 1895995 5687985 8721577 26164731 43607885 130823655