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130836487 = 2943239439
BaseRepresentation
bin1111100110001…
…10100000000111
3100010012011220211
413303012200013
5231443231422
620552140251
73146043325
oct763064007
9303164824
10130836487
1167943431
1237997687
132114c452
141353ad15
15b746577
hex7cc6807

130836487 has 16 divisors (see below), whose sum is σ = 139392000. Its totient is φ = 122590944.

The previous prime is 130836467. The next prime is 130836499. The reversal of 130836487 is 784638031.

It is a cyclic number.

It is not a de Polignac number, because 130836487 - 27 = 130836359 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 (130836427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297814 + ... + 298252.

It is an arithmetic number, because the mean of its divisors is an integer number (8712000).

Almost surely, 2130836487 is an apocalyptic number.

130836487 is a deficient number, since it is larger than the sum of its proper divisors (8555513).

130836487 is a wasteful number, since it uses less digits than its factorization.

130836487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 130836487 is about 11438.3778133090. The cubic root of 130836487 is about 507.6639113989.

The spelling of 130836487 in words is "one hundred thirty million, eight hundred thirty-six thousand, four hundred eighty-seven".

Divisors: 1 29 43 239 439 1247 6931 10277 12731 18877 104921 298033 547433 3042709 4511603 130836487