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130540145 = 582331723
BaseRepresentation
bin1111100011111…
…10001001110001
3100002122010102012
413301332021301
5231404241040
620541532305
73143400341
oct761761161
9302563365
10130540145
116776081a
1237874095
13210775b8
14134a0d21
15b6d8865
hex7c7e271

130540145 has 8 divisors (see below), whose sum is σ = 156843456. Its totient is φ = 104301936.

The previous prime is 130540141. The next prime is 130540169. The reversal of 130540145 is 541045031.

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

It is a cyclic number.

It is not a de Polignac number, because 130540145 - 22 = 130540141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130540145.

It is not an unprimeable number, because it can be changed into a prime (130540141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11747 + ... + 19976.

It is an arithmetic number, because the mean of its divisors is an integer number (19605432).

Almost surely, 2130540145 is an apocalyptic number.

It is an amenable number.

130540145 is a deficient number, since it is larger than the sum of its proper divisors (26303311).

130540145 is an equidigital number, since it uses as much as digits as its factorization.

130540145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32551.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130540145 is about 11425.4166226007. The cubic root of 130540145 is about 507.2803388236.

Adding to 130540145 its reverse (541045031), we get a palindrome (671585176).

The spelling of 130540145 in words is "one hundred thirty million, five hundred forty thousand, one hundred forty-five".

Divisors: 1 5 823 4115 31723 158615 26108029 130540145