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130502545 = 51910313337
BaseRepresentation
bin1111100011101…
…00111110010001
3100002120012211121
413301310332101
5231402040140
620541042241
73143152615
oct761647621
9302505747
10130502545
1167735548
1237856381
1321063454
1413491345
15b6cc64a
hex7c74f91

130502545 has 16 divisors (see below), whose sum is σ = 166458240. Its totient is φ = 97939584.

The previous prime is 130502543. The next prime is 130502573. The reversal of 130502545 is 545205031.

It is a cyclic number.

It is not a de Polignac number, because 130502545 - 21 = 130502543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130502543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3117 + ... + 16453.

It is an arithmetic number, because the mean of its divisors is an integer number (10403640).

Almost surely, 2130502545 is an apocalyptic number.

It is an amenable number.

130502545 is a deficient number, since it is larger than the sum of its proper divisors (35955695).

130502545 is a wasteful number, since it uses less digits than its factorization.

130502545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 130502545 is about 11423.7710498767. The cubic root of 130502545 is about 507.2316294851.

Adding to 130502545 its reverse (545205031), we get a palindrome (675707576).

The spelling of 130502545 in words is "one hundred thirty million, five hundred two thousand, five hundred forty-five".

Divisors: 1 5 19 95 103 515 1957 9785 13337 66685 253403 1267015 1373711 6868555 26100509 130502545