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1538604141 = 3842360889
BaseRepresentation
bin101101110110101…
…0011110001101101
310222020011012002120
41123231103301231
511122340313031
6412401343153
753061630234
oct13355236155
93866135076
101538604141
1171a558078
1236b337ab9
131b69ba669
141084b1b1b
1590122a96
hex5bb53c6d

1538604141 has 8 divisors (see below), whose sum is σ = 2051749440. Its totient is φ = 1025597472.

The previous prime is 1538604139. The next prime is 1538604149. The reversal of 1538604141 is 1414068351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1538604141 - 21 = 1538604139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538604149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5176 + ... + 55713.

It is an arithmetic number, because the mean of its divisors is an integer number (256468680).

Almost surely, 21538604141 is an apocalyptic number.

It is an amenable number.

1538604141 is a deficient number, since it is larger than the sum of its proper divisors (513145299).

1538604141 is an equidigital number, since it uses as much as digits as its factorization.

1538604141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69315.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1538604141 is about 39225.0448183300. The cubic root of 1538604141 is about 1154.4513403935.

The spelling of 1538604141 in words is "one billion, five hundred thirty-eight million, six hundred four thousand, one hundred forty-one".

Divisors: 1 3 8423 25269 60889 182667 512868047 1538604141