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130073245 = 5160116249
BaseRepresentation
bin1111100000011…
…00001010011101
3100001202101221121
413300030022131
5231244320440
620523530541
73136414201
oct760141235
9301671847
10130073245
1167471a55
1237689a51
1320c42c23
14133bcb01
15b64534a
hex7c0c29d

130073245 has 8 divisors (see below), whose sum is σ = 156195000. Its totient is φ = 103987200.

The previous prime is 130073213. The next prime is 130073249. The reversal of 130073245 is 542370031.

It can be written as a sum of positive squares in 4 ways, for example, as 58890276 + 71182969 = 7674^2 + 8437^2 .

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

It is not a de Polignac number, because 130073245 - 25 = 130073213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130073249) 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 7 ways as a sum of consecutive naturals, for example, 120 + ... + 16129.

It is an arithmetic number, because the mean of its divisors is an integer number (19524375).

Almost surely, 2130073245 is an apocalyptic number.

It is an amenable number.

130073245 is a deficient number, since it is larger than the sum of its proper divisors (26121755).

130073245 is a wasteful number, since it uses less digits than its factorization.

130073245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17855.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 130073245 is about 11404.9658044205. The cubic root of 130073245 is about 506.6748236125.

The spelling of 130073245 in words is "one hundred thirty million, seventy-three thousand, two hundred forty-five".

Divisors: 1 5 1601 8005 16249 81245 26014649 130073245