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130549801 = 373528373
BaseRepresentation
bin1111100100000…
…00100000101001
3100002122121122211
413302000200221
5231410043201
620542045121
73143440444
oct762004051
9302577584
10130549801
1167767aa8
12378797a1
132107bb05
14134a465b
15b6db651
hex7c80829

130549801 has 4 divisors (see below), whose sum is σ = 134078212. Its totient is φ = 127021392.

The previous prime is 130549799. The next prime is 130549829. The reversal of 130549801 is 108945031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115347600 + 15202201 = 10740^2 + 3899^2 .

It is a cyclic number.

It is not a de Polignac number, because 130549801 - 21 = 130549799 is a prime.

It is a super-2 number, since 2×1305498012 = 34086501082279202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130549301) 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, 1764150 + ... + 1764223.

It is an arithmetic number, because the mean of its divisors is an integer number (33519553).

Almost surely, 2130549801 is an apocalyptic number.

It is an amenable number.

130549801 is a deficient number, since it is larger than the sum of its proper divisors (3528411).

130549801 is an equidigital number, since it uses as much as digits as its factorization.

130549801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528410.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 130549801 is about 11425.8391814343. The cubic root of 130549801 is about 507.2928462868.

The spelling of 130549801 in words is "one hundred thirty million, five hundred forty-nine thousand, eight hundred one".

Divisors: 1 37 3528373 130549801