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130747247 = 268948623
BaseRepresentation
bin1111100101100…
…00101101101111
3100010000122111122
413302300231233
5231432402442
620550211155
73145222211
oct762605557
9303018448
10130747247
1167892384
1237953abb
132111a947
14135165b1
15b729dd2
hex7cb0b6f

130747247 has 4 divisors (see below), whose sum is σ = 130798560. Its totient is φ = 130695936.

The previous prime is 130747241. The next prime is 130747297. The reversal of 130747247 is 742747031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130747247 - 24 = 130747231 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 (130747241) 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 3 ways as a sum of consecutive naturals, for example, 21623 + ... + 27000.

It is an arithmetic number, because the mean of its divisors is an integer number (32699640).

Almost surely, 2130747247 is an apocalyptic number.

130747247 is a deficient number, since it is larger than the sum of its proper divisors (51313).

130747247 is an equidigital number, since it uses as much as digits as its factorization.

130747247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51312.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 130747247 is about 11434.4762451107. The cubic root of 130747247 is about 507.5484639102.

The spelling of 130747247 in words is "one hundred thirty million, seven hundred forty-seven thousand, two hundred forty-seven".

Divisors: 1 2689 48623 130747247