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130545541 = 718649363
BaseRepresentation
bin1111100011111…
…11011110000101
3100002122101211001
413301333132011
5231404424131
620542013301
73143422150
oct761773605
9302571731
10130545541
1167764885
1237877231
1321079ba9
14134a2c97
15b6da261
hex7c7f785

130545541 has 4 divisors (see below), whose sum is σ = 149194912. Its totient is φ = 111896172.

The previous prime is 130545529. The next prime is 130545553. The reversal of 130545541 is 145545031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 145545031 = 314695001.

It is an interprime number because it is at equal distance from previous prime (130545529) and next prime (130545553).

It is a cyclic number.

It is not a de Polignac number, because 130545541 - 221 = 128448389 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 (130545511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9324675 + ... + 9324688.

It is an arithmetic number, because the mean of its divisors is an integer number (37298728).

Almost surely, 2130545541 is an apocalyptic number.

It is an amenable number.

130545541 is a deficient number, since it is larger than the sum of its proper divisors (18649371).

130545541 is an equidigital number, since it uses as much as digits as its factorization.

130545541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18649370.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 130545541 is about 11425.6527603459. The cubic root of 130545541 is about 507.2873283644.

The spelling of 130545541 in words is "one hundred thirty million, five hundred forty-five thousand, five hundred forty-one".

Divisors: 1 7 18649363 130545541