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13030550194 = 26515275097
BaseRepresentation
bin11000010001010111…
…00110101010110010
31020122010021112110011
430020223212222302
5203141310101234
65553001525134
7640623564154
oct141053465262
936563245404
1013030550194
115587451252
122637aa37aa
1312c880a23c
148b883cad4
15513e88b64
hex308ae6ab2

13030550194 has 4 divisors (see below), whose sum is σ = 19545825294. Its totient is φ = 6515275096.

The previous prime is 13030550191. The next prime is 13030550233. The reversal of 13030550194 is 49105503031.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 13026798225 + 3751969 = 114135^2 + 1937^2 .

It is not an unprimeable number, because it can be changed into a prime (13030550191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257637547 + ... + 3257637550.

Almost surely, 213030550194 is an apocalyptic number.

13030550194 is a deficient number, since it is larger than the sum of its proper divisors (6515275100).

13030550194 is an equidigital number, since it uses as much as digits as its factorization.

13030550194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515275099.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 13030550194 in words is "thirteen billion, thirty million, five hundred fifty thousand, one hundred ninety-four".

Divisors: 1 2 6515275097 13030550194