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130661203 = 148787869
BaseRepresentation
bin1111100100110…
…11101101010011
3100002212021110211
413302123231103
5231422124303
620544304551
73144413311
oct762335523
9302767424
10130661203
1167833772
1237912157
13210ba72a
14134d30b1
15b70e66d
hex7c9bb53

130661203 has 4 divisors (see below), whose sum is σ = 130750560. Its totient is φ = 130571848.

The previous prime is 130661197. The next prime is 130661213. The reversal of 130661203 is 302166031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302166031 = 437027117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130661203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130661213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42448 + ... + 45421.

It is an arithmetic number, because the mean of its divisors is an integer number (32687640).

Almost surely, 2130661203 is an apocalyptic number.

130661203 is a deficient number, since it is larger than the sum of its proper divisors (89357).

130661203 is an equidigital number, since it uses as much as digits as its factorization.

130661203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89356.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 130661203 is about 11430.7131448567. The cubic root of 130661203 is about 507.4371012505.

The spelling of 130661203 in words is "one hundred thirty million, six hundred sixty-one thousand, two hundred three".

Divisors: 1 1487 87869 130661203